22,26-epiminocholestane alkaloids with unusual (20R)-configurations from Solanum species

被引：14

作者：

Ripperger, H

机构：

[1] Institute of Plant Biochemistry, D-06120 Halle (Saale)

来源：

PHYTOCHEMISTRY | 1996年 / 41卷 / 06期

关键词：

Solanum abutiloides; S-canense; S-fraxinifolium; Solanaceae; steroid alkaloids; solafloridine; 20-isosolafloridine; 20,25-bisisoetioline;

D O I：

10.1016/0031-9422(95)00820-9

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 [生物化学与分子生物学]; 081704 [应用化学];

摘要：

From the roots of Solanum abutiloides, solasodine, solafloridine and a new alkaloid have been isolated, the structure of which has been elucidated as 20-isosolafloridine [(20R, 25R)-22,26-epiminocholest-22(N)-ene-3 beta,1 diol]. The structure of an alkaloid from aerial parts of S. canense and S. fraxinifolium earlier supposed to be etioline has been recognized as 20,25-bisisoetioline [(20R,25R)-22,26-epiminocholesta-5,22(N)-diene-3 beta,16 alpha-diol].

引用

页码：1629 / 1631

页数：3

共 10 条

[1]

ASSIGNMENT OF THE C-13 NMR-SPECTRA OF SOME 22,26-EPIMINOCHOLESTANES, 22,26-EPIMINOCHOLEST-22(N)-ENES AND SOME 3-BETA-AMINO STEROIDAL ALKALOIDS [J].