PROCESS FOR PREPARING CARBOSTYRIL DERIVATIVES

摘要

The title compds. (I) were prepd. by reacting (II) with HNR3R4. R1 is H; R3 is lower alkyl, lower alkoxy-alkyl, lowerhydroxy-alkyl, lower-alkanoyloxy, lower-benzoyloxy-alkyl; R2 is H; R4 is C3-10 cycloalkyl or lower cycloalkyl, lower phenyl-alkyl, pyridyl or lower alkyl selected from the trienyl, furyl, tetrahydrofuryl, tetrahydropyranyl or 3,4 -dihydro-2H-pyranyl as a substd. gp. (I) are useful for treating myocardial infarction and embolism.