DOCSLIB.ORG

United States Patent Office Patented July 15, 1969 1

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
United States Patent Office Patented July 15, 1969 1 3,455,927 United States Patent Office Patented July 15, 1969 1. 2 The term halo where used herein denotes halogen 3,455,927 moieties having an atomic weight of less than 80. By the PHENYLPPERAZINYLALKYLSULFAMIDES John J. Lafferty, Levittown, and Charles L. Zirkle, terms lower alkyl, lower alkoxy and lower alkylthio where Berwyn, Pa., assignors to Smith Kline & French used herein groups having from 1 to 4, preferably 1 to 2, Laboratories, Philadelphia, Pa., a corporation of carbon atoms are indicated. Pennsylvania The nontoxic pharmaceutically acceptable acid addi No Drawing. Filed Nov. 17, 1966, Ser. No. 595,037 tion salts of the compounds of Formula I are also in Int, C, CO7d 51/70 d cluded within the scope of this invention. Both organic U.S. CI. 260-268 10 Claims and inorganic acids can be employed to form Such salts, illustrative acids being sulfuric, nitric, phosphoric, hydro O chloric, citric, acetic, lactic, tartaric, pamoic, ethane-disul ABSTRACT OF THE DISCLOSURE fonic, sulfamic, succinic, cyclohexylsulfamic, fumaric, Phenyl (or substituted phenyl) piperazinylalkylsulf maleic, benzoic and the like. These salts are readily pre amides having antidepressant activity are prepared by re pared by methods known to the art. action of a phenylpiperazinylalkylamine with either Sulf The novel compounds of this invention are prepared amide or a sulfamoyl chloride. Both the N- and N'-posi by one of several processes depending on the definition tions of the sulfamide group may be alkyl substituted and of R and R4. Thus where R3 and R4 both represent in addition the N'-position may be incorporated into a hydrogen the products are obtained by the following ring forming a heterocyclic amino group. The latter are proceSS: prepared by reaction of an N-acyl-N-chlorosulfonylphen 20 R \ ylpiperazinylalkylamine with a heterocyclic amine. RN N-A-NH -- NHS ONE --> N-1 R; This invention relates to novel phenylpiperazinylalkyl w N . sulfamides having useful pharmacodynamic acitivity. R1-N N-A-NSONH More specifically the compounds of this invention have where R1, A and R2 are as defined above. As shown, a antidepressant activity as measured by standard pharma piperazinylalkylamine is reacted with sulfamide, prefer cological procedures in animals. Exemplary of the anti ably used in excess, in a solvent in which the reactants depressant profile shown by the compounds of this in are substantially soluble, for example in water, at about vention after oral administration is the enhanced respond 30 60-100° C. for about two to eight hours. ing in the observing behavior of pigeons with a low order To prepare the novel compounds of Formula I where of avoidance blocking activity in monkeys. These com Ra and R4 are lower alkyl the following process is em pounds are approximately equipotent to imipramine. ployed: The novel phenylpiperazinylalkylsulfamides of this in vention may be represented by the following general struc R R3 tural formula: Re-N N-A-NH -- CISON, Hill-m. R R3 R / / R-N N-A-NSON R R 40 R-N N-A-SO N^ R N-1 R Formula I in which: where R1, A and R2 are as defined above. Thus a piper A represents an alkylene chain, straight or branched, azinylalkylamine is reacted with a di-lower alkylsulfamoyl of from 2 to 6 carbon atoms, preferably 2 to 4 carbon 45 chloride in an inert solvent such as an aromatic hydro carbon, for example benzene or toluene, conveniently at R atonrepresents S; phenyl, halophenyl, trifluoromethylphenyl, from 25-40 C. for about 2-12 hours, preferably for lower alkylphenyl, lower alkoxyphenyl, lower alkyl about 4-6 hours. Advantageously two moles of the piper thiophenyl, dihalophenyl, di-lower alkylphenyl, di-lower aZinylalkylamine are employed for each mole of the sul alkoxyphenyl or methylenedioxyphenyl; O famoyl chloride. R represents hydrogen or lower alkyl; and The N'-mono-lower alkyl-N-piperazinylalkylsulfamides R and R4 represent hydrogen, lower alkyl or, when taken of this invention are prepared by treating the N-piper together with the nitrogen atom to which they are at azinylalkylsulfamide with one equivalent of an alkylating tached form a heterocyclic amine of from 4 to 12 car agent Such as a lower alkyl halide, for example a lower bon atoms such as N-pyrrolidinyl, N-piperidinyl, N 55 alkyl bromide or iodide, or a di-lower alkyl sulfate such piperazinyl, N'-lower alkyl-N-piperazinyl, N'-acetoxy as dimethylsulfate, conveniently at room temperature for ethyl-N-piperazinyl or N'-hydroxyethyl-N-piperazinyl. about one to four hours, preferably about 3 hours. A process for the preparation of the compounds of Preferred compounds of this invention are represented Formula I, particularly in which R and R together by the following formula: 60 With the nitrogen atom to which they are attached form a heterocyclic amine, additionally involves the reaction of an N-acyl-N-chlorosulfonylpiperazinylalkylamine (pre { X- N-A-NHSON, pared by reacting an N-acylpiperazinylalkylamine with Y-1 N sodium followed by sulfuryl chloride) with ammonia, a R5 R lower alkylamine or a heterocyclic amine in an anhydrous in which A represents an alkylene chain, straight or solvent such as ether, benzene or toluene at about 40-65 branched, of from 2 to 4 carbon atoms; R5 represents C. To prepare the compounds where R3 and R4 together hydrogen, halogen, lower alkyl, lower alkoxy, lower alkyl represent the N'-hydroxyethyl-N-piperazinyl moiety, the thio or trifluoromethyl; and R3 and R4 represent hydro N-acyl-N-chlorosulfonylpiperazinylalkylamine is reacted gen or lower alkyl. O with N'-acetoxyethylpiperazine followed by hydrolysis of A preferred compound of this invention is N-[3-(4- the resulting N'-acetoxyethyl-N-piperazinylalkylsulfamo phenyl-1-piperazinyl)-propyl-sulfamide. ylpiperazine. 3,455,927 3 4 ... The piperazinylalkylamines used as starting materials reduction of the cyanoethyl intermediate) and 5.8 g. of as described hereinabove are known or are prepared by sulfamide in 75 ml. of water is refluxed for six hours. methods known in the art. Exemplary of these are the Workup as described in Example 1 yields N-3-(4-o-meth condensation of an R1 substituted piperazine with an oxyphenyl-1-piperazinyl)-propyl-sulfamide. alkyl nitrile or omegahaloalkanoylamide followed by re Similarly reaction with 13.3 g. of 1-o-methylthiophenyl duction of the condensation product. Alkylation of the 4-(3-aminopropyl)-piperazine (prepared from o-methyl piperazinylalkylamines with an appropriate alkyl halide thioaniline by reaction with bis-6-bromoethylamine fol gives the R2 substituted starting materials. The R1 sub lowed by alkylation with acrylonitrile and subsequent stituted piperazines are prepared by known methods reduction of the cyanoethyl derivative) and 5.8 g. of sulf such as reaction of an appropriate aniline with bis (B- amide gives N-3-(4-O-methylthiophenyl-1-piperazinyl)- bromoethyl) amine. Reference may be made to U.S. 10 propyl-sulfamide. Patents 2,836,595; 2,833,770; and 2,722,529. EXAMPLE 6 The novel compounds of this invention may be ad ministered orally or parenterally in conventional dosage To 23.3 g. of 1-phenyl-4-(3-methylaminopropyl)-pi unit forms such as tablets, capsules, injectables or the perazine in 75 ml. of dry benzene is added 7.2 g. of di like, by incorporating the appropriate dose of a com 5 methylsulfamoyl chloride in 10 ml. of benzene at 10 C. pound of Formula I with carriers according to accepted and the resulting mixture is stirred at 25 C. for 24 hours. pharmaceutical practices. The reaction mixture is washed with water, dried, con The foregoing is a general description of how to pre centrated and distilled to give N,N',N'-trimethyl-N-3-(4- pare the compounds of this invention. The following ex phenyl-1-piperazinyl)-propyl-sulfamide. amples illustrate the preparation of specific compounds 20 Similarly, reaction of 21.9 g. of 1-phenyl-4-(3-amino but should not be construed as limiting the scope of the propyl)-piperazine as described above yields N',N'-di invention set forth in Formula I. methyl-N-3-(4-phenyl-1-piperazinyl)-propyl)-sulfamide. EXAMPLE 1. EXAMPLE 7 A mixture of 21.9 g. (0.1 M) of 1-phenyl-4-(3-amino 25 From 29.8 g. of N-3-(4-phenyl-1-piperazinyl)-propyl)- propyl)-piperazine and 11.5 g. (0.12 M) of sulfamide in sulfamide (prepared as in Example 1) and 2.5 g. of so 100 ml. of water is refluxed for five hours. The reaction dium hydride in dimethylformamide is obtained the sodio mixture is cooled and filtered to give N-3-(4-phenyl-1- derivative which is treated with 14.2 g. of methyl iodide. (piperazinyl)-propyl-sulfamide, M.P. 155-156 C. The resulting mixture is stirred at room temperature for Similarly reaction with 1-phenyl-4-(2-aminoethyl)- 30 three hours. Extracting with ether, washing the extract piperazine yields the corresponding N-2-(4-phenyl-1- with water, drying, concentrating and distilling gives N'- piperazinyl)-ethyl-sulfamide, M.P. 103-104° C. methyl-N-3-(4-phenyl-1-piperazinyl)-propyl-Sulfamide. EXAMPLE 2. EXAMPLE 8 Employing the general procedure of Example 1, the 35 By the procedure of Example 1, 28.7 g. of 1-(op-di following piperazines are reacted with sulfamide to give chlorophenyl) - 4-(3-aminopropyl)-piperazine (prepared the corresponding products: from op-dichloroaniline by reaction with bis-(3-bromo A. Piperazine: 1-phenyl-4-(4-aminobutyl)-piperazine. methylamine followed by alkylation with acrylonitrile and Product: N-4-(4-phenyl-1-piperazinyl)-butyl-sulfamide. reduction of the resulting cyanoethyl derivative) and 11.5 B. Piperazine: 1-phenyl-4-(5-aminopentyl)-piperazine. 40 g. of sulfamide are reached in aqueous solution and Product: N-5-(4-phenyl - 1 - piperazinyl)-pentyl-sulf worked up to give N-3-(4-op-dichlorophenyl-1-piper amide.
Load more

Recommended publications
  • Sulfamide Chemistry Applied to the Functionalization of Self-Assembled Monolayers on Gold Surfaces
    Sulfamide chemistry applied to the functionalization of self-assembled monolayers on gold surfaces Loïc Pantaine1, Vincent Humblot2, Vincent Coeffard*3 and Anne Vallée*1 Full Research Paper Open Access Address: Beilstein J. Org. Chem. 2017, 13, 648–658. 1Institut Lavoisier de Versailles, UMR 8180, Université Paris-Saclay, doi:10.3762/bjoc.13.64 Université de Versailles Saint-Quentin, 45 avenue des Etats-Unis, 78035 Versailles Cedex, France, 2Sorbonne Universités, UPMC Univ. Received: 23 January 2017 Paris 06, Laboratoire de Réactivité de Surface, UMR CNRS 7197, 4 Accepted: 13 March 2017 place Jussieu, 75005 Paris, France and 3Université de Nantes, Published: 04 April 2017 CNRS, CEISAM, UMR 6230, Faculté des Sciences et des Techniques, rue de la Houssinière, BP 92208, 44322 Nantes Cedex Associate Editor: P. J. Skabara 3, France © 2017 Pantaine et al.; licensee Beilstein-Institut. Email: License and terms: see end of document. Vincent Coeffard* - [email protected]; Anne Vallée* - [email protected] * Corresponding author Keywords: gold surfaces; hydrolysis; IRRAS; reversibility; SAM; sulfamide; XPS Abstract Aniline-terminated self-assembled monolayers (SAMs) on gold surfaces have successfully reacted with ArSO2NHOSO2Ar (Ar = 4-MeC6H4 or 4-FC6H4) resulting in monolayers with sulfamide moieties and different end groups. Moreover, the sulfamide groups on the SAMs can be hydrolyzed showing the partial regeneration of the aniline surface. SAMs were characterized by water contact angle (WCA) measurements, Fourier-transform infrared reflection absorption spectroscopy (IRRAS) and X-ray photoelec- tron spectroscopy (XPS). Introduction Self-assembled monolayers (SAMs) have raised considerable of reactive end groups in the monolayers enabling the chemical interest in the past decades because of their potential applica- functionalization of solid surfaces [3,5-7].
    [Show full text]
  • Risto Laitinen/August 4, 2016 International Union of Pure and Applied Chemistry Division VIII Chemical Nomenclature and Structur
    Approved Minutes, Busan 2015 Risto Laitinen/August 4, 2016 International Union of Pure and Applied Chemistry Division VIII Chemical Nomenclature and Structure Representation Approved Minutes of Division Committee Meeting in Busan, Korea, 8–9 August, 2015 1. Welcome, introductory remarks and housekeeping announcements Karl-Heinz Hellwich (KHH) welcomed everybody to the meeting, extending a special welcome to those who were attending the Division Committee meeting for the first time. He described house rules and arrangements during the meeting. KHH also regretfully reported that it has come to his attention that since the Bangor meeting in August 2014, Prof. Derek Horton (Member, Division VIII task groups on Carbohydrate and Flavonoids nomenclature; Associate Member, IUBMB-IUPAC Joint Commission on Biochemical Nomenclature) and Dr. Libuse Goebels, Member of the former Commission on Nomenclature of Organic Chemistry) have passed away. The meeting attendees paid a tribute to their memory by a moment of silence. 2. Attendance and apologies Present: Karl-Heinz Hellwich (president, KHH) , Risto Laitinen (acting secretary, RSL), Richard Hartshorn (past-president, RMH), Michael Beckett (MAB), Alan Hutton (ATH), Gerry P. Moss (GPM), Michelle Rogers (MMR), Jiří Vohlídal (JV), Andrey Yerin (AY) Observers: Leah McEwen (part time, chair of proposed project, LME), Elisabeth Mansfield (task group chair, EM), Johan Scheers (young observer, day 1; JS), Prof. Kazuyuki Tatsumi (past- president of the union, part of day 2) Apologies: Ture Damhus (secretary, TD), Vefa Ahsen, Kirill Degtyarenko, Gernot Eller, Mohammed Abul Hashem, Phil Hodge (PH), Todd Lowary, József Nagy, Ebbe Nordlander (EN), Amélia Pilar Rauter (APR), Hinnerk Rey (HR), John Todd, Lidija Varga-Defterdarović.
    [Show full text]
  • Sulfamides and Sulfamide Polymers Directly from Sulfur Dioxide
    Supplementary Information Sulfamides and sulfamide polymers directly from sulfur dioxide Alexander V. Leontiev, H. V. Rasika Dias, and Dmitry M. Rudkevich* Department of Chemistry & Biochemistry, The University of Texas at Arlington, Arlington, TX 76019-0065, USA E-mail: [email protected] General X-ray analysis was performed on a Bruker Smart Apex CCD based X-ray diffractometer with the Oxford Cryosystem low temperature setup. FTIR spectra were measured on Bruker Vector 22 spectrometer in KBr. 1H 13 and C NMR spectra were recorded at 295K on JEOL 300 and 500 MHz spectrometers in CDCl3 or DMSO-d6. Chemical shifts were measured relative to residual non-deuterated solvents resonances. SO2 was purchased from AirGas, Inc. and dried prior the use by passing through P2O5. MS analyses were performed on an Agilent ESI- TOF spectrometer. CHN and Cl elemental analyses were done at QTI, Inc. Melting points were measured on a Mel-Temp II apparatus and are uncorrected. S1 O O S SO2 NH2 NH NH I2, Py(Et3N) RR MeCN R 3 1 R = H, Me, Cl, Br, OMe, NO2, CN, CF3 SO2 O H2 N NH2 N N S H H n I2, Py(Et3N) O Me CN 4 2 General procedure for preparation of sulfamides 1a-o: SO2 gas was bubbled through the ice-cold MeCN solution (5 mL) of Py or Et3N (3 mmol) for 10 min. I2 (1 mmol) was then added, and after it dissolved, arylamines 3a-o (1 mmol) were added. The reaction mixture was stirred for 2 h at rt and then poured into 10% aq NaOH (20 mL).
    [Show full text]
  • Synthesis and Nucleic-Acid-Binding Properties of Sulfamide and 3'-N-Sulfamate-Modified
    View Article Online / Journal Homepage / Table of Contents for this issue PERKIN Synthesis and nucleic-acid-binding properties of sulfamide- and 3Ј-N-sulfamate-modified DNA† Kevin J. Fettes,a,b Nigel Howard,b David T. Hickman,a,b Steven Adah,c Mark R. Player,c Paul F. Torrence d and Jason Micklefield*a a Department of Chemistry, University of Manchester Institute of Science and Technology, 1 Faraday Building, PO Box 88, Manchester, UK M60 1QD b Department of Chemistry, Birkbeck College, University of London, 29 Gordon Square, London, UK WC1H 0PP c Laboratory of Medicinal Chemistry, NIDDK, NIH Bethesda, MD, 20892-0805, USA d Department of Chemistry, Northern Arizona University, Flagstaff, AZ, 86011-5698, USA Received (in Cambridge, UK) 19th November 2001, Accepted 13th December 2001 First published as an Advance Article on the web 29th January 2002 A novel synthetic route for the preparation of sulfamide- and 3Ј-N-sulfamate-modified dinucleosides has been developed. The synthesis utilises 4-nitrophenyl chlorosulfate to prepare 4-nitrophenyl 3Ј- or 5Ј-sulfamates (e.g., 18 and 27), which couple smoothly with the alcohol or amine functionalities of other nucleosides. The conformational properties of the sulfamide- and 3Ј-N-sulfamate-modified dinucleosides d(TnsnT) and d(TnsoT) were compared with the native dinucleotide d(TpT) using NMR and CD spectroscopy. Whilst both modifications result in a shift in the conformational equilibrium of the 5Ј-terminal ribose rings from C2Ј-endo to a preferred C3Ј-endo conformation, only the 3Ј-N-sulfamate-modified dimer exhibits an increased propensity to adopt a base-stacked helical conformation.
    [Show full text]
  • (TETS) Hapten Library: Synthesis, Electrophysiological Studies and Immune Response in Rabbits
    HHS Public Access Author manuscript Author ManuscriptAuthor Manuscript Author Chemistry Manuscript Author . Author manuscript; Manuscript Author available in PMC 2018 June 22. Published in final edited form as: Chemistry. 2017 June 22; 23(35): 8466–8472. doi:10.1002/chem.201700783. Development of tetramethylenedisulfotetramine (TETS) hapten library: synthesis, electrophysiological studies and immune response in rabbits Bogdan Barnych Dr.a, Natalia Vasylieva Dr.a, Tom Josepha, Susan Hulsizerb, Hai M. Nguyen Dr.c, Tomas Cajka Dr.d, Isaac Pessah Prof.b, Heike Wulff Prof.c, Shirley J. Geea, and Bruce D. Hammock Prof.a aDepartment of Entomology and Nematology, and UCD Comprehensive Cancer Center, University of California Davis, Davis, California 95616, United States bDepartment of Molecular Biosciences, School of Veterinary Medicine, University of California Davis, Davis, California 95616, United States cDepartment of Pharmacology, School of Medicine, University of California Davis, Davis, California 95616, United States dUC Davis Genome Center-Metabolomics, University of California Davis, Davis, California 95616, United States Abstract There is a need for fast detection methods for the banned rodenticide tetramethylenedisulfotetramine (TETS), a highly potent blocker of the γ-aminobutyric acid (GABAA) receptors. General synthetic approach toward two groups of analogues was developed. Screening of the resulting library of compounds by FLIPR or whole-cell voltage-clamp revealed that despite the structural differences some of the TETS analogues retained GABAA receptor inhibition, however their potency was an order of magnitude lower. Antibodies raised in rabbits against some of the TETS analogues conjugated to protein recognized free TETS and will be used for the development of an immunoassay for TETS.
    [Show full text]
  • Hetero)Aryl Sulfamides
    Photochemically-mediated nickel-catalyzed synthesis of N-(hetero)aryl sulfamides R. Thomas Simons, Georgia E. Scott, Anastasia L. Gant Kanegusuku and Jennifer L. Roizen* Duke University, Department of Chemistry, Box 90346, Durham, NC, 27708-0354, USA Corresponding Author - E-mail: [email protected] Table of Contents/Abstract Graphic: (pin)B S O O O O O O S S S H2N N N N N N H H O Ir Ni O O ArBr F3C tBu O O O O O O O O S Me S Me (hetero)aryl bromide S Me S Me H2N N H2N N N N N N Boc H H Boc Me Me readily accessible sulfamides under mild conditions broad access to N-(hetero)aryl sulfamides ABSTRACT: A general method for the N-arylation of sulfamides with aryl bromides is described. The protocol leverages a dual-catalytic system of nickel and a photoexcitable iridium complex and proceeds at room temperature under visible light irradiation. Using these tactics, aryl boronic esters and aryl chlorides can be carried through the reaction untouched. Thereby, this method complements known Buchwald-Hartwig coupling methods for N-arylation of sulfamides. INTRODUCTION N-Aryl sulfamides are critical components of active pharmaceutical1 and agrochemical2 agents (Figure 1).3,4 In drug discovery, sulfamides can be valuable analogues of sulfamate, sulfonamide, urea, carbamate, and amide functional groups.1a In reactions, N,N’-disubstituted sulfamides are useful as chiral auxiliaries,5 as organocatalysts,6 as reagents to promote dehydration,7 as precursors to sterically encumbered carbon–carbon bonds8 and as directing groups for C–H functionalization processes.9 Despite the potential of this valuable functional group, sulfamides may be underutilized due to limitations in practical methods for their preparation.10, 11, 12 Figure 1.
    [Show full text]
  • (CDR) by CASRN Or Accession Number
    List of Chemicals Reported for the 2012 Chemical Data Reporting (CDR) by CASRN or Accession Number For the 2012 CDR, 7,674 unique chemicals were reported by manufacturers (including importers). Chemicals are listed by CAS Registry Number (for non-confidential chemicals) or by TSCA Accession Number (for chemicals listed on the confidential portion of the TSCA Inventory). CASRN or CASRN or ACCESSION ACCESSION NUMBER CA INDEX NAME or GENERIC NAME NUMBER CA INDEX NAME or GENERIC NAME 100016 Benzenamine, 4-nitro- 10042769 Nitric acid, strontium salt (2:1) 10006287 Silicic acid (H2SiO3), potassium salt (1:2) 10043013 Sulfuric acid, aluminum salt (3:2) 1000824 Urea, N-(hydroxymethyl)- 10043115 Boron nitride (BN) 100107 Benzaldehyde, 4-(dimethylamino)- 10043353 Boric acid (H3BO3) 1001354728 4-Octanol, 3-amino- 10043524 Calcium chloride (CaCl2) 100174 Benzene, 1-methoxy-4-nitro- 100436 Pyridine, 4-ethenyl- 10017568 Ethanol, 2,2',2''-nitrilotris-, phosphate (1:?) 10043842 Phosphinic acid, manganese(2+) salt (2:1) 2,7-Anthracenedisulfonic acid, 9,10-dihydro- 100447 Benzene, (chloromethyl)- 10017591 9,10-dioxo-, sodium salt (1:?) 10045951 Nitric acid, neodymium(3+) salt (3:1) 100185 Benzene, 1,4-bis(1-methylethyl)- 100469 Benzenemethanamine 100209 1,4-Benzenedicarbonyl dichloride 100470 Benzonitrile 100210 1,4-Benzenedicarboxylic acid 100481 4-Pyridinecarbonitrile 10022318 Nitric acid, barium salt (2:1) 10048983 Phosphoric acid, barium salt (1:1) 9-Octadecenoic acid (9Z)-, 2-methylpropyl 10049044 Chlorine oxide (ClO2) 10024472 ester Phosphoric acid,
    [Show full text]
  • Investigations Into Sulfamide As a Phosphate Isostere in Anti-TB Drug Development
    Investigations into sulfamide as a phosphate isostere in anti-TB drug development A thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Chemistry at the University of Canterbury Kajitha Suthagar Supervisor: Prof. Antony Fairbanks University of Canterbury 2017 Table of contents Abstract ................................................................................................................. iv Acknowledgements ................................................................................................................. vi Abbreviations .............................................................................................................. viii Chapter 1 Introduction ....................................................................................................... 1 1.1 General introduction ............................................................................................... 1 1.2 Biological background ........................................................................................... 1 1.2.1 General aspects of tuberculosis ............................................................................ 1 1.2.2 Cell wall structure of M. tuberculosis .................................................................. 5 1.2.3 Arabinan biosynthesis .......................................................................................... 9 1.2.3.1 Arabinofuranosylsyltransferases ..................................................................... 10 1.3 The
    [Show full text]
  • Ep 0557122 B1
    Patentamt Europaisches |||| ||| 1 1|| ||| ||| || || |||| || || || |||| || (19) J European Patent Office Office europeen des brevets (1 1 ) EP 0 557 122 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) int. CI.6: C07C 307/04, C07D 207/26, of the grant of the patent: C07D 207/12, C07D 501/04, 15.01.1997 Bulletin 1997/03 C07D 477/00 (21) Application number: 93301235.3 (22) Date of filing : 1 9.02.1 993 (54) A production method for sulfamide Verfahren zur Herstellung von Sulfamic! Methode de production de sulphamide (84) Designated Contracting States: • Nishino, Yutaka AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL Neyagawa-shi, Osaka (JP) PTSE (74) Representative: Nash, David Allan et al (30) Priority: 21.02.1992 JP 35366/92 Haseltine Lake & Co. 08.07.1992 JP 180930/92 28 Southampton Buildings 20.08.1992 JP 221767/92 Chancery Lane London WC2A1 AT (GB) (43) Date of publication of application: 25.08.1993 Bulletin 1993/34 (56) References cited: EP-A- 0 050 927 (73) Proprietor: SHIONOGI SEIYAKU KABUSHIKI KAISHA • CHEMICAL ABSTRACTS, vol. 85, no. 5, 1976, trading under the name of Columbus, Ohio, US; abstract no. 3331 3n, SHIONOGI & CO. LTD. GRYNKIEWICZ, GRZEGORZ 'Reaction of 1,2:3,4 Osaka 541 (JP) -di-O-isopropylidene-alpha-D-galactopyrano se with dialkyl azodicarboxylate in the presence of (72) Inventors: triphenylphosphine' • Sendo, Yuji • CHEMICAL ABSTRACTS, vol. 103, no. 17, 1985, Itami-shi, Hyogo-ken (JP) Columbus, Ohio, US; abstract no. 142095d, • Kii, Makoto OSIKAWA, TATSUO. 'Dialkyl phosphonate- Amagasaki-shi, Hyogo-ken (JP) promoted reaction of alcohols with diethyl • Nishitani, Yasuhiro azodicarboxylate and triphenylphosphine: Izumi-shi, Osaka (JP) preparation of diethyl 1 -substituted-1 ,2- • Irie, Tadashi hydrazinedicarboxylate.' Suita-shi, Osaka (JP) CO CM CM LO Note: Within nine months from the publication of the mention of the grant of the European patent, give LO any person may notice to the European Patent Office of opposition to the European patent granted.
    [Show full text]
  • On the Route to the N-Phosphoryl Sulfamic Acid
    Polish J. Chem., 74, 785–791 (2000) On the Route to the N-Phosphoryl Sulfamic Acid by G. Mielniczak and A. £opusiñski* Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, 90-363 £ódŸ, Sienkiewicza 112, Poland (Received January 17th, 2000; revised manuscript February 10th, 2000) Synthesis of the previously unknown N-diethyl phosphorosulfamate 15 was accom- plished by direct sulfamation of diethyl phosphoroamidate 4 with sulfur trioxide–DMF complex 14. The acid 15 was isolated in form of benzyl- 16 and cyclohexylammonium 17 salts, which were found to be unstable in water solution. The other possible routes to sulfamate 15 were briefly tested. Key words: sulfamation, SO3–DMF complex, N-diethyl phosphorylsulfamate, N,N¢-bis(diethylphosphoro) sulfamide The chemistry of organic sulfamic acids is widely described [1,2]. Sulfamic acids monosubstituted at nitrogen 1 are frequently used as convenient precursors of highly reactive N-sulfonylamines 2 [3] in the sequence of reactions leading to b–sultams 3 [4] (Scheme 1). We considered it worthwhile to check the possibility of using this se- quence and N-phosphoryl sulfamic acids as starting material for the synthesis of N-phosphoryl 1,2-thiazetidine 1,1-dioxide, 3 [R = (alkylO)2P(O)–] [5]. Scheme 1 O O O CC S RNHSO2 OH RNS R N O 1 2 3 RR= =alkyl, aryl, aroyl In the present work we describe the results of investigations on the development of synthesis of N-phosphoryl sulfamic acids. In contrast to N-substituted N-sulfonyl amines known to date, the ones bearing phosphoryl group on the nitrogen are not on record.
    [Show full text]
  • Ab Initio Methods 268, 303, 304, 320, 327–333, 335–337 Ab
    555 Index a allosteric 315, 382 ab initio methods 268, 303, 304, 320, AMBER 280, 281, 283, 284, 286, 288, 327–333, 335–337 293–295, 303, 304, 311, 312, 315, ab initio molecular dynamics (MD) 316 303, 304 AM1 326, 327 absorption band 168 analytical chemistry 214, 399, 423, 434 acidity 128, 130, 336 angle bending 283–284, 289, 295 activity cliffs 458, 468, 470 antimalarial 479, 480 addition reaction 141 antioxidation 369 adjacency matrix 18–21, 367 applicability domain (AD) 158, 346, ADME (absorption, distribution, 434, 450, 466, 468, 475–478 metabolism and excretion) 384, application programming interface 466 (API) 71, 222 advanced interatomic potentials Arabidopsis Information Resource 207 290–291 arithmetic mean 288, 402, 414, 433 adverse drug reactions (ADRs) 479 aromaticity 29, 48, 79, 109, 110, 144, agglomerative HCA 420 193 ALADDIN 362 aromatization 469, 484, 486 algorithms artificial intelligence (AI) 166, 168, 453 backtracking 83, 236–239, 251, 258 brute force 237 artificial neural network (ANN) 345, complexity 232 346, 438, 442–451, 467 deep learning 453 asphericity 378 depth-first search 238 association coefficients 247, 248 dynamic programming 256–258 atom-by-atom 163, 164, 237, 243 efficiency 232 atomic mean force potentials 517 hash 49 atomic orbitals (AOs) 321–325, heuristic 415 327–329 leapfrog 304 atom pairs (AP) 249, 283, 287, 288, learning 380, 453, 458, 529 303, 304, 352, 359–362 alignment atom surface assignments (ASA) 381 global 256 atropisomers 32 local 258 attenuation models 271–277, 384 pair-wise 254 augmented annealing 445 target-template 516 augmented atoms (AA) 249 Chemoinformatics: Basic Concepts and Methods, First Edition.
    [Show full text]
  • Alkene Difunctionalization Using Hypervalent Iodine Reagents: Progress and Developments in the Past Ten Years
    Review Alkene Difunctionalization Using Hypervalent Iodine Reagents: Progress and Developments in the Past Ten Years Ji Hoon Lee 1, Sungwook Choi 2,* and Ki Bum Hong 1,* 1 New Drug Development Center (NDDC), Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu 701-310, Korea 2 Department of New Drug Discovery and Development, Chungnam National University, Daejon 305-764, Korea * Correspondence: [email protected], (S.C.); [email protected], (K.B.H.); Tel.: +82-53-790-5272 (K.B.H.) Received: 25 June 2019; Accepted: 18 July 2019; Published: 19 July 2019 Abstract: Hypervalent iodine reagents are of considerable relevance in organic chemistry as they can provide a complementary reaction strategy to the use of traditional transition metal chemistry. Over the past two decades, there have been an increasing number of applications including stoichiometric oxidation and catalytic asymmetric variations. This review outlines the main advances in the past 10 years in regard to alkene heterofunctionalization chemistry using achiral and chiral hypervalent iodine reagents and catalysts. Keywords: hypervalent iodine; alkene difunctionalization; diamination; diacetoxylation; aminofunctionalization; oxyfunctionalization; dihalogenation 1. Introduction Starting in the early 2000s, hypervalent iodine chemistry has undergone extensive development and a wide range of organic synthesis applications have been devised owing to their stability in air and to moisture, commercial availability, low toxicity, mild reaction conditions, and ease of handling. Most importantly, however, their complementary oxidizing ability compared to transition metals has been the main reason why they are increasingly being studied and used in synthetic organic chemistry. As an efficient oxidant, hypervalent iodine allows for a wide range of synthetic transformations, namely oxidation of alcohols, α-functionalization of carbonyl compounds, spirocyclization, and difunctionalization of alkenes.
    [Show full text]