申请人:Allen & Hanburys Limited
公开号:US03952050A1
公开(公告)日:1976-04-20
Indane derivatives of general formula (I): ##SPC1## in which: R.sub.1 and R.sub.2 represent a hydrogen atom, a lower alkyl group, preferably containing 1 to 6 and particularly 1 to 4 carbon atoms, or an arylalkyl group, or together form a cycloalkyl ring containing 3-6 carbon atoms; R.sub.3 is a hydrogen atom or a lower alkyl preferably containing 1 to 6 and particularly 1 to 4 carbon atoms; R.sub.4 represents the group --NR.sub.5 R.sub.6 in which R.sub.5 and R.sub.6 may be the same or different and each represent a hydrogen atom, a carbamoyl group or a lower alkyl radical preferably containing 1 to 6 and particularly 1 to 4 carbon atoms which may optionally be substituted by amino, alkylamino, dialkylamino, hydroxy, aryl or aroyl groups which aroyl groups may be substituted; or in which R.sub.5 and R.sub.6 may be joined to form a ring optionally containing other hetero atoms; and non-toxic pharmaceutically acceptable salts and esters thereof. The compounds have marked analgetic activity and are devoid of respiratory depressant action.
通式(I)的印第安衍生物:##SPC1## 其中:R.sub.1和R.sub.2代表氢原子,较低的烷基,优选含1至6个特别是1至4个碳原子的烷基或芳基烷基,或者一起形成含3-6个碳原子的环烷基;R.sub.3是氢原子或较低的烷基,优选含1至6个特别是1至4个碳原子;R.sub.4代表--NR.sub.5 R.sub.6基团,其中R.sub.5和R.sub.6可以相同或不同,并且每个代表氢原子,氨基甲酰基或较低的烷基基团,优选含1至6个特别是1至4个碳原子,可以选择地被氨基,烷基氨基,二烷基氨基,羟基,芳基或芳香基取代,其中芳香基可以被取代;或其中R.sub.5和R.sub.6可以连接以形成可选地含有其他杂原子的环;以及其无毒药学上可接受的盐和酯。这些化合物具有显著的镇痛活性,并且不具有呼吸抑制作用。