Patent number: 3992535
Abstract: Compounds of the formula ##SPC1##WhereinR.sub.1 is hydrogen, methyl or ethyl, andAr is phenyl, 3-chlorophenyl, 3-bromophenyl, 2-fluorophenyl, 3-fluorophenyl, 4-fluorophenyl, 3-tolyl, 2-methoxyphenyl, 3-methoxyphenyl, 2-pyridyl, 4-methyl-2-pyridyl, 6-methyl-2-pyridyl, 3-hydroxy-2-pyridyl, 3-pyridyl, 4-pyridyl, 6-chloro-3-pyridazinyl, 2-pyrazinyl, 6-chloro-2-pyrazinyl, 6-chloro-4-pyrimidinyl, 2-thiazolyl, 4-methyl-2-thiazolyl, 4-ethyl-2-thiazolyl, 5-methyl-2-thiazolyl, 5-ethyl-2-thiazolyl, 4,5-dimethyl-2-thiazolyl, 4-ethyl-5-methyl-2-thiazolyl, 5-ethyl-4-methyl-2-thiazolyl, 2-benzothiazolyl, 4,5,6,7-tetrahydro-2-benzothiazolyl, 5,6-dihydro-7H-thiopyrano[4,3-d]thiazol-2-yl, 3-methyl-5-isothiazolyl, 1,3,4-thiadiazolyl, 5-methyl-1,3,4-thiadiazol-2-yl or 5-methyl-3-isoxazolyl,And non-toxic, pharmacologically acceptable salts thereof formed with an inorganic or organic base; the compounds as well as their salts are useful as inhibitors of platelet adhesion and aggregation.
Type:
Grant
Filed:
October 29, 1975
Date of Patent:
November 16, 1976
Assignee:
Boehringer Ingelheim GmbH
Inventors:
Gunter Trummlitz, Helmut Teufel, Wolfhard Engel, Ernst Seeger, Walter Haarmann, Gunther Engelhardt