Compounds of the general formula:
(wherein, R' and R2 are, the same or different, hydrogen, a halogen, a lower alkyl, a cycloalkyl, a lower alkoxy, a phenylalkyloxy, or trifluoromethyl; R3 is hydrogen or methyl; R' is carboxyl or an esterified carboxyl; and X is oxygen or sulfur), or a salt thereof, are novel compounds, possess aldose reductase inhibitory and platelet aggregation innibitory activities, and of use as drugs for prevention and treatment of diabetic complications such as diabetic cataract, retinophathy, nephropathy, and neuropathy.
通式如下的化合物
(其中,R'和 R2 相同或不同,为氢、卤素、低级烷基、环烷基、低级烷氧基、苯基烷氧基或三
氟甲基;R3 为氢或甲基;R'为羧基或酯化羧基;X为氧或
硫)或其盐是新型化合物,具有抑制醛糖还原酶和抑制血小板聚集的活性,可用作预防和治疗糖尿病并发症如糖尿病性白内障、视网膜病变、肾病和神经病变的药物。