Alkaloids of the papaveraceae—II

Tetrahedron
1966.0

Abstract

The alkaloid content of Romneya coulteri var. trichocalyx (Eastwood) Jepson has been investigated. Protopine is the major alkaloid of the species, followed in concentration by two new alkaloids, coulteropine and romneine. The structures of these have been shown to be 1-methoxy-protopine and 6,7-methylenedioxy-1-(3c4-dimethoxybenzyl)-1,2,3,4-tetrahydroisoquinoline, respectively. © 1966.

DOI： 10.1016/0040-4020(66)80085-6

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