United States Patent 19 11) Patent Number: 5,387,604 Mcdonald Et Al
US005387604A United States Patent 19 11) Patent Number: 5,387,604 McDonald et al. 45 Date of Patent: Feb. 7, 1995 (54) 14 BENZODIOXIN DERIVATIVES AND pp. 323-330, Role of 5HT1-like receptors in the reduc THEIR USE AS SEROTONIN 5HT tion of porcine cranial arteriovenous anastomotic shunt AGONSTS ing by Sumatriptan. 75 Inventors: Ian A. McDonald, Loveland; Ronald Saxena, et al, TiPS, May 1989, vol. 10, pp. 200-204; C. Bernotas, Cincinnati; Mark W. 5HT1-like receptor agonists and the pathophysiology Dudley, Somerville; Jeffrey S. of migraine. Sprouse, Cincinnati, all of Ohio Hamel et al., Br. J. Pharmacol, (1991), 102, pp. 227-233; Contractile 5HT1 receptors in human isolated pial arte 73) Assignee: Merrell Dow Pharmaceuticals Inc., rioles: correlation with 5-HT1D binding sites. Cincinnati, Ohio Edward E. Schwiezer, et al.; Psychopharmacology Bul 21 Appl. No.: 962,434 leting, vol. 22, No. 1, 1986, pp. 183-185; Open Trial of Buspirone in the Treatment of Major Depressive Disor 22 Filed: Oct. 16, 1992 der. Related U.S. Application Data European Journal of Pharmacology, 180 (1990) pp. 339-349, Dreteler, et al.; Comparison of the cardiovas 60 Division of Ser. No. 735,700, Jul. 30, 1991, Pat. No. cular effects of the 5-HT1A receptor agonist flexinoxan 5,189,179, which is a continuation-in-part of Ser. No. with that of 8-OH-DPAT in the rat. 574,710, Aug. 29, 1990, abandoned. European Journal of Pharmacology, 182 (1990) 63-72, 51) int. C.6 .................. C07D 319/20: A61K 31/335. Connor, et al.; Cardiovascular effects of 5HT1 receptor 52 U.S.
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