Steroid anaesthetics of the pregnane and 19-norpregnane series are described, the compounds possessing a 3.alpha.-hydroxy group, a 5.alpha.-hydrogen atom or a 4,5-double bond, a 17.alpha.-hydrogen atom, a 20-oxo group and at the 21-position a hydrocarbon group which may be substituted by an oxo, ether, hydroxy, acyloxy, esterified carboxy, thioether, thioester, heterocyclic, amino or aromatic group, or a fluorine or chlorine atom. The acetals and 20-enol ethers of compounds having a 21-formyl group are also described.
本文介绍了孕烷和19-去孕烷系列的类
固醇麻醉剂,这些化合物具有3α-羟基、5α-氢原子或4,5-双键、17α-氢原子、20-酮基和在21-位置上的烃基,该烃基可以被氧代、醚、羟基、酰氧基、酯化羧基、
硫醚、
硫酯、杂环、
氨基或芳香族基或
氟或
氯原子取代。本文还介绍了具有21-酰基基团的化合物的
缩醛和20-烯醇醚。