申请人:HOECHST-ROUSSEL
PHARMACEUTICALS INCORPORATED
公开号:EP0469450A1
公开(公告)日:1992-02-05
This invention relates to p-acylaminophenoxycarbamates having the formula
where R1 and R2 are each independently hydrogen, loweralkyl, aryl and arylloweralkyl; R3 is hydrogen, loweralkyl, arylloweralkyl; R4 is hydrogen, loweralkyl, formyl, alkylcarbonyl, arylloweralkyl, phenylcarbonyl, arylloweralkylcarbonyl, substituted phenylcarbonyl, pyridylcarbonyl, and substituted pyridylcarbonyl with the proviso that if R4 contains a carbonyl group directly attached to the oxygen of the N-O moiety, R3 cannot be hydrogen; or R3 and R4 taken together form a heterocyclic ring selected from the group consisting of imidazole or loweralkylimidazole; X is hydrogen, halogen, hydroxy, loweralkyl, loweralkoxy, nitro, amino or trifluoromethyl; and p is an integer selected from 0 and 1; the pharmaceutically acceptable acid addition salts thereof, and where applicable, the geometric and stereoisomers and racemic mixtures thereof. The compounds of this invention display utility as analgesics.
本发明涉及对乙酰
氨基苯氧基
氨基甲酸酯,其式为
其中R1和R2各自独立地为氢、低级烷基、芳基和芳低烷基;R3为氢、低级烷基、芳低烷基;R4为氢、低级烷基、甲酰基、烷基羰基、芳低烷基、苯基羰基、芳低烷基羰基、取代的苯基羰基、
吡啶基羰基和取代的
吡啶基羰基,但如果R4含有直接连接到N-O分子的氧上的羰基,则R3不能为氢;X为氢、卤素、羟基、低级烷基、低级烷氧基、硝基、
氨基或三
氟甲基;p为选自 0 和 1 的整数;其药学上可接受的酸加成盐,以及(如适用)其几何异构体、立体异构体和外消旋混合物。本发明的化合物具有镇痛作用。