Studies on the alkaloids from Picrasma quassioides Bennet. VI. Structures of picrasidines N, O, and Q.
作者:TAICHI OHMOTO、KAZUO KOIKE
DOI:10.1248/cpb.33.4901
日期:——
Three new alkaloids, picrasidines N (I), O (II), and Q (III), have been isolated from the root wood of Picrasma quassioides BENNET (Simaroubaceae). The structures were determined on the basis of spectral analysis and chemical evidence.
从 Picrasma quassioides BENNET(樗树科)的根木中分离出了三种新生物碱,即苦木碱 N (I)、O (II) 和 Q (III)。根据光谱分析和化学证据确定了它们的结构。
Nelson; Price, 1952, vol. 5, p. 563,567
作者:Nelson、Price
DOI:——
日期:——
Studies on the alkaloids from Picrasma quassioides BENNET. V. Structures of picrasidines L,M, and P.
作者:TAICHI OHMOTO、KAZUO KOIKE
DOI:10.1248/cpb.33.3847
日期:——
Two new alkaloids, picrasidines M (II) and P (III), have been isolated from the root-bark of Picrasma quassioides BENNET. The structure of picrasidine L has been revised from 3-methyl-canthin-2, 6-dione to 3-methylcanthin-5, 6-dione (I). The structures were determined on the basis of spectral analysis and chemical evidence.