申请人:Hoechst-Roussel Pharmaceuticals Incorporated
公开号:US05109011A1
公开(公告)日:1992-04-28
This invention relates to p-acylaminophenoxycarbamates having the formula ##STR1## where R.sub.1 and R.sub.2 are each independently hydrogen, loweralkyl, aryl and arylloweralkyl; R.sub.3 is hydrogen, loweralkyl, aryllowerallkyl; R.sub.4 is hydrogen, loweralkyl, formyl, alkylcarbonyl, arylloweralkyl, phenylcarbonyl, arylloweralkylcarbonyl, substituted phenylcarbonyl, pyridylcarbonyl, and substituted pyridylcarbonyl with the proviso that if R.sub.4 contains a carbonyl group directly attached to the oxygen of the N-O moiety, R.sub.3 cannot by hydrogen; or R.sub.3 and R.sub.4 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.
本发明涉及具有以下式子的p-酰基氨基苯氧基氨基甲酸酯:##STR1## 其中,R.sub.1和R.sub.2各自独立地为氢、低碳基、芳基和芳基低碳基;R.sub.3为氢、低碳基、芳基低碳基;R.sub.4为氢、低碳基、甲酰基、烷基羰基、芳基低碳基、苯基羰基、芳基低碳基羰基、取代苯基羰基、吡啶基羰基和取代吡啶基羰基,但是如果R.sub.4含有直接连接到N-O基团的氧原子的羰基基团,则R.sub.3不能为氢;或者R.sub.3和R.sub.4在一起形成从咪唑或低碳基咪唑等所选的杂环环;X为氢、卤素、羟基、低碳基、低碳氧基、硝基、氨基或三氟甲基;p为选择自0和1的整数;其药学上可接受的酸加合物,以及在适用的情况下,它们的几何和立体异构体和外消旋混合物。本发明化合物具有作为镇痛剂的实用性。