Disclosed are 7.beta.-arylalkyl-7.alpha.-methyl-6-oxo or 6.alpha.-hydroxy-3-methoxy or 3-hydroxy-4,5.alpha.-epoxy-17-methyl or 17-cycloalkylmethyl-morphinans of the formula: ##STR1## wherein R is H or methyl, X is oxo or .alpha.-hydroxy, n is 2 to 4 and R.sub.1 is methyl, cyclopropylmethyl or cyclobutylmethyl. These compounds are useful as strong analgesics.
本发明涉及一种7.β.-芳基烷基-7.α.-甲基-6-氧或6.α.-羟基-3-甲氧基或3-羟基-4,5.α.-环氧-17-甲基或17-环烷基甲基-
吗啡酮类化合物,其
化学式为:##STR1##其中R为H或甲基,X为氧或α-羟基,n为2至4,R1为甲基、
环丙基甲基或
环丁基甲基。这些化合物可用作强烈的镇痛剂。