Studies on the constituents of Picrasma quassioides Bennet. I. On the alkaloidal constituents.
摘要:
1-Acetyl-β-carboline (I), 4, 8-dimethoxy-1-ethyl-β-carboline (II), and three new alkaloids, 4, 8-dimethoxy-1-(2-methoxyethyl)-β-carboline (III), β-carbolin-1-yl 4, 8-dimethoxy-β-carbolin-1-yl-ethyl ketone (IV) and 3-methylcanthin-2, 6-dione (V), were isolated from the root of Picrasma quassioides BENNET (Simaroubaceae). The structures were elucidated on the basis of spectroscopic studies and chemical evidence.
Studies on the constituents of Picrasma quassioides Bennet. I. On the alkaloidal constituents.
摘要:
1-Acetyl-β-carboline (I), 4, 8-dimethoxy-1-ethyl-β-carboline (II), and three new alkaloids, 4, 8-dimethoxy-1-(2-methoxyethyl)-β-carboline (III), β-carbolin-1-yl 4, 8-dimethoxy-β-carbolin-1-yl-ethyl ketone (IV) and 3-methylcanthin-2, 6-dione (V), were isolated from the root of Picrasma quassioides BENNET (Simaroubaceae). The structures were elucidated on the basis of spectroscopic studies and chemical evidence.