Crystal and molecular structure of 2-allyl-2′-hydroxy-5,9-dimethyl-6,7-benzomorphan hydrobromide monohydrate

Abstract

The structure of 2-allyl-2′-hydroxy-5,9-dimethyl-6,7-benzomorphan has been determined from a three-dimensional X-ray analysis of the crystal structure of its hydrobromide derivative.

The molecule is a three-ring segment of the morphine molecule, and has the same conformation as the corresponding part of this. A high degree of packing efficiency is obtained in the crystal, by hydrogen bonding which involves four hydrogen atoms per molecule.