Phenyl-3-aminoalkyl-4-methyl-2,6-dioxopiperidines of the Formula I
wherein:
R₁ represents hydrogen or C₁-C₄ alkyl;
n is 1 or 2;
R₂ represents hydrogen or methyl, provided that one R₂ is hydrogen when n is 2;
R₃ represents hydrogen or C₁-C₂ alkyl;
R₄ represents C₁-C₂ alkyl;
R₅ and R₆ independently represent hydrogen or methyl;
m is 0 to 3; and
each Y is in a meta or para position and independently represents hydroxy, C₁-C₂ alkoxy, C₁-C₂ alkyl, C₁-C₂ hydroxyalkyl, halogen, or trifluoromethyl, provided that hydroxy and alkoxy are not in the para position,
or a pharmacologically acceptable acid addition salt thereof have analgesic activity. The compounds can be administered enterally, parenterally or topically. The topical compositions are novel.
The presently preferred compound is 3-(3′methoxyphenyl)-3-(3˝-N,N-dimethylaminopropyl)-4,4-dimethyl-2,6-dioxopiperidine (AGN 2979).
式 I 的苯基-3-
氨基烷基-4-甲基-2,6-二氧代
哌啶类化合物
其中
R₁ 代表氢或 C₁-C₄ 烷基;
n 为 1 或 2;
R₂ 代表氢或甲基,但当 n 为 2 时,其中一个 R₂ 为氢;
R₃ 代表氢或 C₁-C₂ 烷基;
R₄ 代表 C₁-C₂ 烷基;
R₅ 和 R₆ 各自代表氢或甲基;
m为0至3;以及
每个 Y 位于元位或对位,独立地代表羟基、C₁-C₂烷氧基、C₁-C₂烷基、C₁-C₂羟基烷基、卤素或三
氟甲基,但羟基和烷氧基不位于对位、
或其药理学上可接受的酸加成盐具有镇痛活性。这些化合物可经肠道、肠外或局部给药。外用组合物是新颖的。
目前优选的化合物是 3-(3′
甲氧基苯基)-3-(3˝-N,N-二甲基
氨基丙基)-4,
4-二甲基-2,6-二氧代
哌啶(AGN 2979)。