New C28 Steroidal Glycosides from Tubocapsicum anomalum

Naoko Kiyota; Kazushi Shingu; Koki Yamaguchi; Yasuyuki Yoshitake; Kazunobu Harano; Hitoshi Yoshimitsu; Hiroyuki Miyashita; Tsuyoshi Ikeda; Chie Tagawa; Toshihiro Nohara

doi:10.1248/cpb.56.1038

Notes

New C₂₈ Steroidal Glycosides from Tubocapsicum anomalum

Naoko Kiyota, Kazushi Shingu, Koki Yamaguchi, Yasuyuki Yoshitake, Kazunobu Harano, Hitoshi Yoshimitsu, Hiroyuki Miyashita, Tsuyoshi Ikeda, Chie Tagawa, Toshihiro Nohara

著者情報

キーワード: Tubocapsicum anomalum, C₂₈ steroidal glycoside, X-ray analysis

ジャーナルフリー

2008 年 56 巻 7 号 p. 1038-1040

DOI https://doi.org/10.1248/cpb.56.1038

詳細

抄録

Two new C₂₈ steroidal glycosides, tuboanosides A (1) and B (2), were isolated from the fruit of Tubocapsicum anomalum MAKINO. Their chemical structures were elucidated on the basis of spectroscopic and X-ray diffraction analysis of the p-bromobenzoyl derivative (4) of tuboanosigenin (3), the sapogenol derivative of these two glycosides. Tuboanosides have the structural peculiarity of an unusual side chain carrying an unusual linkage with a C-21 bound to C-25 on the lactone ring.

責任著者(Corresponding author)

J-STAGEへの登録はこちら（無料）