STRUCTURE OF HYDROCOTARNINE HYDROBROMIDE

The heterocyclic ring of the isoquinoline adopts a half-chair conformation and the dioxole ring an envelope conformation. The methyl group is rotated from the plane of the benzene ring attached to it by 104.2 (3)-degrees. The N atom of the heterocyclic ring is displaced from the plane of the ring by 0.606 (3) angstrom. The structure is stabilized by N-H ... Br hydrogen bonds.