申请人:Synthelabo
公开号:US04690931A1
公开(公告)日:1987-09-01
Compounds of the formula: ##STR1## wherein R.sub.1 is hydrogen, halogen, trifluoromethyl, alkyl, hydroxyl, alkyoxy, benzyloxy, alkanoyloxy, or benzoyloxy, or when R.sub.2 is hydroxyl or methoxy in the 4-position and R.sub.3 is hydrogen, R.sub.1 may also represent hydroxymethyl carbamoyl or alkoxycarbonyl, R.sub.2 is hydrogen, halogen, alkyl, hydroxyl, or alkoxy, R.sub.3 is hydrogen or alkyl, R.sub.4 is alkyl (in which case the compounds are (.+-.)-erythro) or when R.sub.3 represents hydrogen, R.sub.4 may also be hydrogen, and R.sub.5 is hydrogen, halogen, alkyl, alkoxy, or three methoxy groups in the 3-, 4- and 5-positions and pharmaceutically acceptable acid addition salts thereof, with the exclusion of compounds wherein: (a) one of R.sub.1 and R.sub.2 is in the 4-position and is hydroxyl, alkoxy or benzyloxy, the other is in the 3-position and is hydrogen, hydroxyl, alkoxy or benzyloxy, and R.sub.3 and R.sub.5 are hydrogen and wherein: (b) R.sub.1 is in the 4-position and is halogen, R.sub.4 is methyl and R.sub.2, R.sub.3 and R.sub.5 are hydrogen, are useful as medicaments.
该化合物的结构式为:##STR1##其中R.sub.1为氢、卤素、三氟甲基、烷基、羟基、烷氧基、苄氧基、烷酰氧基或苯甲酰氧基;或当R.sub.2为4-位的羟基或甲氧基且R.sub.3为氢时,R.sub.1也可以表示羟甲基氨基甲酰或烷氧羰基;R.sub.2为氢、卤素、烷基、羟基或烷氧基;R.sub.3为氢或烷基;R.sub.4为烷基(此时化合物为(.+-.)-erythro);或当R.sub.3表示氢时,R.sub.4也可以是氢;R.sub.5为氢、卤素、烷基、烷氧基或3-、4-和5-位有三个甲氧基基团的化合物及其药学上可接受的酸盐,排除以下化合物:(a)其中R.sub.1和R.sub.2中的一个位于4-位且为羟基、烷氧基或苄氧基,另一个位于3-位且为氢、羟基、烷氧基或苄氧基,R.sub.3和R.sub.5为氢;以及(b)其中R.sub.1位于4-位且为卤素,R.sub.4为甲基,R.sub.2、R.sub.3和R.sub.5为氢的化合物作为药物是有用的。