A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
167/246
A61K 31/00 (2006.01) A61K 31/235 (2006.01) A61K 31/60 (2006.01)
Patent
CA 1050888
HISTIDINE DECARBOXYLASE INHIBITORS Abstract of the Disclosure Compounds having the general formula Image wherein R1 is OH or Image in which Y is lower alkyl or phenyl; R2 is substituted either at the 4 -position or at the 5 - position and is hydrogen, fluoro, bromo, chloro, hydroxy, lower alkyl or Image in which Y is lower alkyl or phenyl; R3 is chloro, bromo or lower alkyl; R4 is hydroxy, amino, low r alkoxy or Image in which Y is lower alkyl or phenyl-; R5 is hydrogen, fluoro, bromo, chloro, carboxyl, lower alkyl or Image in which Z is lower alkyl; and the nontoxic, pharmaceutically acceptable metal-salts of said compound in which R5 is carboxyl; and the pharmaceutically acceptable salts and esters thereof exhibit strong activities in inhibiting histidine decarboxylase and xanthine oxidase. One example is the compound of the formula Image
197864
Kayahara Kenji
Takamatsu Akira
Takeuchi Tomio
Umezawa Hamao
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