Description
This alkaloid is a constituent of the bark of Pogonopus tubulosus (DC.) Schumann and is laevorotatory having [α]
24D - 65.9° (c 2.0, pyridine). The ultraviolet
spectrum in ethanol has an absorption maximum at 281Mu with a shoulder at
225 Mu. Two methoxyl groups, a phenolic hydroxyl group and two imino
groups are present, the base yielding a crystalline monoacetyl derivative, m.p.
l84-6°C and the diacetyl compound, m.p. l49-l5l°C.
References
Brauchli et al., 1. Amer. Chem. Soc., 86, 1895 (1964)
