Abstract: 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.
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