16,17-Didehydro-9,17-dihydro-9α-hydroxy-12,13-dimethoxyibogamine-18-carboxylic acid methyl ester

Present in Conopharyngia jollyana Stapf., this alkaloid is obtained as colourless crystals from MeOH and has [α]²²_D - 56° (c 0.6, CHC13). It contains two methoxyl groups, one hydroxyl and a C-ethyl group. The ultraviolet spectrum exhibits absorption maxima at 217,238 and 300 mμ.

Hootele et al., Bull. Soc. Chim. Belg., 76,300 (1967)