2,16-Didehydro-16-(methoxycarbonyl)condyfolan 4-oxide

Description

Isolated from the root bark of Conopharyngia johnstonii Stapf., this alkaloid crystallizes in colourless needles from Me2CO and has [α]²²_D + 588° (c 1.99, CHCI3). The structure has been determined by comparison with the preceding base.

References

Pinar et al., Helv. Chim. Acta, 55,2972 (1972)