Novel triazolo(4,5-d) pyrimidine compounds and pharmaceuticals thereof.

摘要

A compound of formula (I), wherein; R1 is an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl or thienyl group; R2 is an optionally substituted alkyl, alkenyl or cycloalkyl: R3 and R4 are both hydroxy; R5 is hydrogen or C1-6 alkyl; R6 is an optionally substituted alkyl. Also described is a pharmaceutical composition useful in the treatment of myocardial infarction or unstable angina.