Collect. Czech. Chem. Commun.
1984, 49, 1412-1420
https://doi.org/10.1135/cccc19841412
Synthesis of sanguinarine, chelerythrine, and oxysanguinarine
Jan Šmidrkal
Research Institute of Fat Industry, 269 01 Rakovnik
Abstract
Benzo[c]phenanthridines Va and Vb have been prepared by photocyclization of amines IVa and IVb and transformed into the alkaloids sanguinarine (VIa) and chelerythrine (VIb). Oxysanguinarine (XIV) has been prepared from diazoketone XVIII.
