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Paper | Regular issue | Vol 31, No. 1, 1990, pp.149-152
Published online, 1st January, 1970
DOI: 10.3987/COM-89-5209
Labrandine: A New Pentacyclic Proaporphine Alkaloid from Roemeria hybrida

Belkis Gözler*

*Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ege University, Izmir, Turkey


The pentacyclic phenolic proaporphine (-)-labrandine (1) has been isolated from Turkish Roemeria hybrida (L.) DC. (Papaveraceae). O-Methylation furnished (-)-misramine (2) which is also present in the plant. Acetylation of 1 afforded (-)-2,10-deacetyllabrandine (3), and selective deacetylation of the latter provided (-)-10-acetyllabrandine (4).