申请人:PFIZER INC.
公开号:EP0115133A1
公开(公告)日:1984-08-08
Compounds of the formula
and their pharmaceutically acceptable salts, wherein:
U is oxygen, sulfur or nitrogen substituted with hydrogen or alkyl having 1-4 carbon atoms;
n is zero or one;
W is carbonyl or hydroxymethylene;
R is hydrogen or alkyl having 1-4 carbon atoms;
X is hydrogen, chloro, bromo, iodo, alkyl having 1-4 carbon atoms, dimethyl or (CH2)mQ wherein m is 1 or 2 and Q is phenyl or halophenyl, with the proviso that when X is dimethyl, n is one;
Y is hydrogen, halo, nitro, trifluoromethyl, alkoxy having 1-4 carbon atoms or alkyl having 1-4 carbon atoms; and
Z is hydrogen, halo, nitro, trifluoromethyl, alkoxy having 1-4 carbon atoms or alkyl having 1-4 carbon atoms, with the proviso that if either Y or Z is nitro the other is hydrogen.
The compounds are useful in the treatment of certain chronic complications arising from diabetes mellitus, such as diabetic cataracts, retinopathy and neuropathy.
式中的化合物
及其药学上可接受的盐类,其中
U 是被氢或具有 1-4 个碳原子的烷基取代的氧、硫或氮;
n 为 0 或 1
W 是羰基或羟基亚甲基;
R 是氢或具有 1-4 个碳原子的烷基;
X 是氢、氯、溴、碘、具有 1-4 个碳原子的烷基、二甲基或 (CH2)mQ,其中 m 是 1 或 2,Q 是苯基或卤代苯基,但当 X 是二甲基时,n 是 1;
Y 是氢、卤素、硝基、三氟甲基、具有 1-4 个碳原子的烷氧基或具有 1-4 个碳原子的烷基;及
Z 是氢、卤素、硝基、三氟甲基、具有 1-4 个碳原子的烷氧基或具有 1-4 个碳原子的烷基,但如果 Y 或 Z 是硝基,则另一个是氢。
这些化合物可用于治疗糖尿病引起的某些慢性并发症,如糖尿病性白内障、视网膜病变和神经病变。