2517-52-4

This alkaloid occurs in Aspidosperma refractum Mart. and occurs in two forms with the melting points given above. The base is laevorotatory, having [α]_D- 23° (CHCl3). The structure has been determined on the basis of the infrared, NMR and mass spectra.

Gilbert et ai., Experientia, 16,61 (1960)
Djerassi et ai., J. Amer. Chern. Soc., 84, 1499 (1962)