Apomorphinans from Isoquinolines:Grewe cyclization of 1-(2-hydroxybenzyl)-N-methyloctahydroisoquinoline and itsO-methyl ether
作者:Helmut Schmidhammer、Arnold Brossi、Judith L. Flippen-Anderson、Richard Gilardi
DOI:10.1002/hlca.19830660807
日期:1983.12.14
optically active ketomorphinan 5 afforded the optically active morphinan 6 differing chromatographically and spectroscopically from the material obtained in a Grewe-cyclization of the isoquinoline 1. A single crystal X-ray analysis of a hydrobromide salt of a phenolic amine obtained from 1 and 2 with refluxing hydrobromic acid showed this compound to be the N-methylapomorphinan 4.