N. Aimi et al., ISOLATION OF 2 NEW NITROGENOUS METABOLITES FROM THE CULTURED-CELLS OFASPIDOSPERMA-QUEBRACHO-BLANCO, Heterocycles, 38(11), 1994, pp. 2411-2414
Two novel nitrogen containing metabolites were isolated from cultured
cells of Aspidosperma quebracho-blanco. Their structures were elucidat
ed as 11-hydroxytubotaiwine and 1,6-propano-3-ethylideno-1,4-piperazin
e-2,5-dione.