Studies on the constituents of Picrasma quassioides BENNET. II. On the alkaloidal constituents.
Copyright policy )Studies on the constituents of Picrasma quassioides BENNET. II. On the alkaloidal constituents.
Two new alkaloids, 4, 9-dimethoxy-1-vinyl-β-carboline (XI) and β-carbolin-1-yl 3-(4, 8-dimethoxy-β-carbolin-1-yl)-1-methoxypropyl ketone (XII) were isolated from the wood of Picrasma quassioides BENNET (Simaroubaceae) together with known alkaloids, 1-ethyl-4-methoxy-β-carboline (VI), 4-methoxy-1-vinyl-β-carboline (VII), 4, 8-dimethoxy-1-vinyl-β-carboline (VIII), canthin-6-one (IX), and 5-methoxycanthin-6-one (X). The structures of these alkaloids were elucidated on the basis of spectroscopic evidence.
- Toho University Japan
- Tohoku University Japan
canthin-6-one type alkaloid, β-carbolin-1-yl 3-(4, 8-dimethoxy-β-carbolin-1-yl)-1-methoxypropyl ketone, 3-methylcanthin-2, 6-dione
canthin-6-one type alkaloid, β-carbolin-1-yl 3-(4, 8-dimethoxy-β-carbolin-1-yl)-1-methoxypropyl ketone, 3-methylcanthin-2, 6-dione
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