Polyacetylenic Compounds from Atractylodes Rhizomes
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大韓本草學會誌 제31권 제5호(2016년 9월) ISSN 1229-1765(Print), ISSN 2288-7199(Online) Kor. J. Herbol. 2016;31(5):25-39 http://dx.doi.org/10.6116/kjh.2016.31.5.25. Polyacetylenic compounds from Atractylodes rhizomes Jung-Hoon Kim*# Division of Pharmacology, School of Korean Medicine, Pusan National University ABSTRACT Objectives : Atractylodes rhizomes, which have been widely used to treat gastrointestinal disorders, consist of numerous chemical compounds. Polyacetylenes are the parts of characteristic compounds of importance required to understand the therapeutic properties of Atractylodes rhizomes. It is necessary to understand the physicochemical and pharmacological properties of polyacetylenes in the Atractylodes rhizomes. Methods : The literatures from 1970 to January 2016 were searched using Korean and international electronic databases. The chemical structures of polyacetylenes were drawn by structure-drawing software. Results : The reported polyacetylenes were classified by their chemical skeletons and original resources, and their physicochemical and pharmacological features were discussed. Polyacetylenes with skeletal moieties were reported, such as diene–diyne types (two double and two triple carbon-bonds), triene–diyne types (three double carbon bonds and two triple carbon bonds), and monoene–diyne types (one double carbon bonds and two double carbon bonds), with various functional groups. Atractylodin was most frequently reported from many Atractylodes species. Atractylodin-related polyacetylenes showed chemical instability in both high and freezing temperatures. Processing of the Atractylodes rhizomes by stir-frying with bran could affect the contents of polyacetylenes and their bioavailability in vivo. Several polyacetylenes showed structure-related anti-inflammatory activities and gastrointestinal activities. Conclusion : Polyacetylene compounds in Atractylodes rhizomes were based on three chemical backbones and showed diverse physicochemical and pharmacological features. The present study provides structural, physicochemical, and pharmacological information of polyacetylene from Atractylodes rhizomes. This information provides fundamental data for further research. 1) Key words : Atractylodes rhizome, polyacetylene, chemical structure, physicochemical properties, pharmacological properties Ⅰ. Introduction as Baekchul2). Atractylodes rhizomes contain diverse chemical The dried rhizomes of genus Atractylodes (family: compounds such as polyacetylenes, sesquiterpenes, and Asteraceae) plants, which have been classified into essential oils, and those compounds are thought to “Baekchul” and “Changchul”, have been used to treat exert the pharmacological effect of the rhizomes3–5). Of wind-phlegm-caused headache, diarrhea, and those compounds, polyacetylenes and sesquiterpenes 1) phlegm-induced digestive disorders . In the Korean most occurred in Atractylodes rhizomes; however, the pharmacopeia, four species of Atractylodes rhizomes occurrences of compounds and the presentation of are used as Changchul or Baekchul: the rhizomes of A. chemical structures were insufficiently arranged by lancea DC. (AL) and A. chinensis Koidz. (AC) are each Atractylodes species6). registered as Changchul; and those of A. macrocephala Polyacetylene (or polyethyne by the IUPAC name) Koidz. (AM) and A. japonica Koidz.(AJ) are registered consists of polymerization of acetylene, a alkyne-type *#Corresponding and First author : Jung-Hoon Kim. Division of Pharmacology, School of Korean Medicine, Pusan National University, Yangsan, 50612, Republic of Korea ·Tel:+82-51-510-8456 ·Fax : +82-51-510-8420 ·E-mail : [email protected] ·Received:28 June 2016 ·Revised:10 August 2016 ·Accepted:20 September 2016 26 大 韓 本 草 學 會 誌 ― Vol. 31 No. 5, 2016 hydrocarbon, with a chain of olefin groups repeated, “Changzhu”, “Baizhu”, “Sojutsu”, “Byakujutsu”, “Atractylodes and possesses long carbon chains with alternating rhizome”, “Atractylodes macrocephala”, “Atractylodes single and double bonds of either cis or trans japonica”, “Atractylodes lancea”, “Atractylodes chinensis”, geometry7). Hydrogen atoms can be attached at “Atractylodes ovata”, and “Atractylodes koreana” conjugated carbon atoms and they can also be replaced Studies in accordance with the following criteria by a functional group8). were included: 1) original articles (not review articles; Therefore, in this study, the chemical structures of 2) medicinal part is the rhizome of Atractylodes plant; polyacetylenes were classified by their chemical 3) polyacetylenes were isolated or analyzed using analytical backbones and the species of genus Atractylodes where tools from Atractylodes rhizomes; 4) chemical names the compounds were contained was presented. including International Union of Pure and Applied Additionally, phytochemical characteristics of those Chemistry (IUPAC) names or chemical structures of compounds were also discussed through extraction or polyacetylenes were presented; and 5) no language processing. Thereafter, their pharmacological activities limitation. could be understood. Chemical structures were manually drawn using ChemDraw software (v. Ultra 10.0; Cambridge Soft, Cambridge, MA, USA). If necessary, author amended Ⅱ. Materials and methods incorrect chemical structures or names in the studies. 1. Paper search The literatures from 1970 to January 2016 were Ⅲ. Results and discussion searched using a variety of electronic bibliographic databases: Korean databases, including the Korea 1. Diene–diyne types of Atractylodes Education and Research Information Service, National polyacetylenes Discovery for Science Leaders, the Korean Studies Polyacetylenes of diene-diyne types were classified Information Service System, and Korea Institute of into furan-ring-attached, alcohol-attached, acetyl- Science and Technology Information, Korean Traditional attached, and two more functional groups-attached Knowledge Portal, Oriental Medicine Advanced compounds. Seven atractylodin-related acetylenes, Searching Integrated System, KoreaMed, eArticle, and which contained a furan-ring at the terminal carbon, DBpia; Chinese databases including the China National consisted of nine carbons. Another seven polyacetylenes Knowledge Infrastructure; Japanese databases including comprised 14 carbons with double bonds at C-6 and Citation Information from the National Institute of C-12, and triple bonds at C-8 and C-10. Diacetyl Informatics and Japan Science and Technology atractylodiol was acetylene with thirteen carbons and Information Aggregator, Electronic; and electronic (2E,8E)-decadiene-4,6-diyne-1,10-diol-1-O-β global databases including PubMed, Web of Science, -D-glucopyranoside was the only polyacetylene which ScienceDirect, and Google Scholar. consisted of 10 carbons and glucopyranose. Of those compounds, atractylodin was most reported in previous 2. Search terms and inclusion criteria reports and was contained in AL, AC, AJ, and AK (A. koreana). However, no diene-diyne types were reported The search terms used in the present study were “창출”, to be contained in AM (Table 1). “백출”, “蒼朮”, “白朮”, “苍术”, “白术”, “Changchul”, “Baekchul”, Table 1: Polyacetylenes of diene–diyne types. Name Structure Origin AL9-36) 19,20,27,28,31-33,36-49) Atractylodin O AC 2-[(1E,7E)-nona-1,7-dien-3,5-diynyl]furan 5' 7 AJ28,36) 28,34,36,38) 1' 1 AK 7 (1Z)-Atractylodin 1 AL49,50) 2-[(1Z,7E)-nona-1,7-dien-3,5-diynyl]furan 1' O 5' Polyacetylenic compounds from Atractylodes rhizomes 27 Name Structure Origin O 5' 1' 1 9-Nor-atractylodin AL13) 7 O 9 2 Atractylodinol 9,17,18,30,31,33) O OH AL (2E,8E)-9-(furan-2-yl)nona-2,8-dien-4,6- 5' 8 AC31,33,37,41) diyn-1-ol 1' 2 8 OH (1Z)-Atractylodinol 50,51) (2E,8Z)-9-(furan-2-yl)nona-2,8-dien-4,6- 1' AL diyn-1-ol O 5' O 2 Acetylatractylodinol 12,17,18,30,31,33) O AL [(2E,8E)-9-(furan-2-yl)nona-2,8-dien-4,6- O 5' 8 AC31,33, 41, 47) diynyl] acetate 1' O 8 2 O (1Z)-Acetylatractylodinol 49) [(2E,8Z)-9-(furan-2-yl)nona-2,8-dien-4,6- 1' AL diynyl] acetate O 5' HO AC51) (6E,12E)-Tetradecadiene-8,10-diyne-1,3-diol 6 AJ52,53) Atractylodes rhizomes54) OH 1 HO 6 (6E,12Z)-Tetradecadiene-8,10-diyne-1,3-diol AC55) OH 1 HO (6Z,12Z)-Tetradecadiene-8,10-diyne-1,3-diol AC55) HO O (6E,12E)-3-Acetoxytetradeca-6,12-dien-8,10- O AC51) diyn-1-ol 6 OH 1 HO 6 (6E,12E)-1-Acetoxytetradeca-6,12-dien-8,10- AC51) diyn-3-ol O 1 O O O 1,4-Acetoxytetradeca-6,12-diene-8,10-diyne AJ56) O O 28 大 韓 本 草 學 會 誌 ― Vol. 31 No. 5, 2016 Name Structure Origin O 5' 1' 1 9-Nor-atractylodin AL13) 7 O 9 2 Atractylodinol 9,17,18,30,31,33) O OH AL (2E,8E)-9-(furan-2-yl)nona-2,8-dien-4,6- 5' 8 AC31,33,37,41) diyn-1-ol 1' 2 8 OH (1Z)-Atractylodinol 50,51) (2E,8Z)-9-(furan-2-yl)nona-2,8-dien-4,6- 1' AL diyn-1-ol O 5' O 2 Acetylatractylodinol 12,17,18,30,31,33) O AL [(2E,8E)-9-(furan-2-yl)nona-2,8-dien-4,6- O 5' 8 AC31,33, 41, 47) diynyl] acetate 1' O 8 2 O (1Z)-Acetylatractylodinol 49) [(2E,8Z)-9-(furan-2-yl)nona-2,8-dien-4,6- 1' AL diynyl] acetate O 5' HO AC51) (6E,12E)-Tetradecadiene-8,10-diyne-1,3-diol 6 AJ52,53) Atractylodes rhizomes54) OH 1 HO 6 (6E,12Z)-Tetradecadiene-8,10-diyne-1,3-diol AC55) OH 1 HO (6Z,12Z)-Tetradecadiene-8,10-diyne-1,3-diol AC55) HO O (6E,12E)-3-Acetoxytetradeca-6,12-dien-8,10- O AC51) diyn-1-ol 6 OH 1 HO 6 (6E,12E)-1-Acetoxytetradeca-6,12-dien-8,10- AC51) diyn-3-ol O 1 O O O 1,4-Acetoxytetradeca-6,12-diene-8,10-diyne AJ56) O O Polyacetylenic compounds from Atractylodes rhizomes 29 Name Structure Origin O O (6E,12E)-Tetradecadiene-8,10-diyne-1,3- AC51) diol diacetate 6 AJ35,52-54,57,58) O 1 O O Diacetyl atractylodiol O O 59,60) [(5E,11E)-3-acetyloxytrideca-5,11-dien-7,9- O AJ diynyl]acetate 5 OH (2E,8E)-Decadiene-4,6-diyne-1,10-diol HO 61) O OH AL 1-O-β-D-glucopyranoside HO O OH AL, A. lancea; AC, A.