-isomorphinan-6-ones (3T) were prepared by conjugate addition of lithium dialkylcuprates to the corresponding 7,8-didehydro-6-ones 2C and 2T. These 17-methyl compounds were potent analgesics and were converted to mixed narcotic agonists-antagonists 7-10, by replacement of the 17-methyl groups with cycloalkylmethyl moieties. The 8 substituent modified the type of activity observed. One of these compounds
                                    通过将二烷基
铜酸
锂共轭添加到相应的7,8-二氢-6-烷基中来制备一系列的8-烷基-3-甲氧基-17-甲基
吗啡喃-6-(3C)和-异
吗啡喃-6-酮(3T)。 2C和2T。这些17-甲基化合物是有效的
镇痛药,并通过用环烷基甲基部分取代17-甲基而转化为混合的麻醉激动剂-拮抗剂7-10。8个取代基改变了观察到的活性类型。这些化合物之一,即17-(
环丁基甲基)-3-羟基-8β-甲基
吗啡喃-6-(10Ca)的激动剂与拮抗剂之比为0.1。化合物10Ca在大鼠中不支持或不引起依赖性。然而,该化合物似乎是
吗啡依赖性猴子中的典型
麻醉剂。