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。