Biosynthesis of Alkaloid Natural Products 5.1

T1 - Phenol oxidation and biosynthesis. Part XXII. The alkaloids of erythrina lysistemon, E. abyssinica, E. poeppigiana, E. fusca, and E. lithosperma; the structure of erythratidine

Ways of alkaloid biosynthesis are too numerous and cannot ..

“Antiplatelet effects of some aporphine and phenanthrene alkaloids in rabbits and man.”

In the biosynthesis of alkaloids, ..

Erythrina lysistemon, E. abyssinica, E. poeppigiana, E. fusca, and E. lithosperma have been examined for alkaloids of biogenetic interest. In addition to the known Erythrina alkaloids, α- and β-erythroidine, eryosdine, erythraline, erythratine, and erysotrine, new alkaloids erythristemine, erythratidinone, and 3-demethoxyerythratidinone were isolated and characterised. The aporphine alkaloid isoboldine, and the benzyltetrahydroisoquinoline alkaloids (-)-orientaline and (+)-N-nororientaline were also isolated. A partial synthesis of erythratidine indicated a 2S configuration. A plausible biogenetic scheme for the new alkaloids is discussed.

bridge formation in the biosynthesis of alkaloids such as ..

N2 - Erythrina lysistemon, E. abyssinica, E. poeppigiana, E. fusca, and E. lithosperma have been examined for alkaloids of biogenetic interest. In addition to the known Erythrina alkaloids, α- and β-erythroidine, eryosdine, erythraline, erythratine, and erysotrine, new alkaloids erythristemine, erythratidinone, and 3-demethoxyerythratidinone were isolated and characterised. The aporphine alkaloid isoboldine, and the benzyltetrahydroisoquinoline alkaloids (-)-orientaline and (+)-N-nororientaline were also isolated. A partial synthesis of erythratidine indicated a 2S configuration. A plausible biogenetic scheme for the new alkaloids is discussed.

“Different mechanism of relaxation induced by aporphine alkaloids in rat uterus.”
The isolation and structure elucidation of camptothecin, a novel alkaloidal leukemia and tumor inhibitor from Camptotheca acuminata

Cytotoxic and antitumor potentialities of aporphinoid alkaloids ..

The methylation pattern is of great importance in aporphine alkaloid biosynthesis

A metabolite of the isoquinoline alkaloid biosynthesis pathway ..

In the biosynthesis of alkaloids, such reactions may take place within a molecule, ..

mono‐oxygenase of benzylisoquinoline alkaloid biosynthesis ..