Resolution of (+)-1,8-diethyl-1,3,4,9-tetrahydropyrano[3,4-b]indole-1-acetic acid using cholesteryl aniline

摘要

Racemic (+)-1,8-diethyl-1,3,4,9-tetrahydroprano[3,4-b]indole-1-acetic acid is resolved with cholesteryl aniline to obtain directly the pure salt of the (+)-enantiomer with cholesteryl aniline and converting the latter salt to the pure (+)-enantiomer.