Chemical and Pharmaceutical Bulletin 2007-Jan
New C(28) steroidal glycosides from Tubocapsicum anomalum.
只有注册用户可以翻译文章
登陆注册
链接已保存到剪贴板
关键词
抽象
Three new C(28) steroidal glycosides, isotubocaposides A (1), B (2), and C (3), were isolated from the fruits of Tubocapsicum anomalum MAKINO. Their chemical structures were elucidated on the basis of spectroscopic and X-ray diffraction analysis of p-bromobenzoyl derivative (5) of isotubocaposigenin (4), the sapogenol derivative of these three glycosides. Isotubocaposides have the structural peculiarity of an unusual side chain carrying a C-21 bound to C-24 on the lactone ring.