| 摘要 |
<p>Compounds of formula (I) <CHEM> wherein R is hydroxyl, halogen, lower alkanoyloxy, R4-carbamoyloxy, arylthio, 1-methyltetrazole-5-yl-thio, 1-imidazolyl, morpholino, <CHEM> in which R4 is lower alkyl or aryl, R5 is hydrogen, lower alkyl or aryl, R6 is hydrogen, lower alkyl, hydroxy-lower alkyl, aryl, aryl-lower alkanoyl, arylcarbonyl, arylsulfonyl or thienyl-lower alkanoyl, A and A1 are lower alkylene, m is an integer of from 4 to 6, n is the integer 2 or 3; R1 is alkyl aryl-lower alkyl or aryl; and R2 and R3 are each lower alkyl or together constitute tetramethylene; and pharmacologically acceptable non-toxic salts thereof; wherein aryl means phenyl unsubstututed or substituted by C1-3 alkyl, halogen, nitro or lower alkoxyl; have an inhibitory action on platelet aggregation, vasodilating activity and/or inhibitory action on lipoperoxide generation.</p> |
