The Crystal and Molecular Structures of Hancokinol and Hancolupenone from Cynanchum hancokianum (MAXIM.) AL. ILJINSKI. (Asclepiadaceae)

Hiroaki TAKAYANAGI; Haruo OGURA; Yaeko KONDA; Mieko URANO; Yoshihiro HARIGAYA; Xian LI; Hongxiang LOU; Masayuki ONDA

doi:10.1248/cpb.39.1234

Hiroaki TAKAYANAGI, Haruo OGURA, Yaeko KONDA, Mieko URANO, Yoshihiro HARIGAYA, Xian LI, Hongxiang LOU, Masayuki ONDA

Author information

Keywords: pentacyclic triterpene, Cynanchum hancokianum, hancokinol, hancolupenone, X-ray analysis, stereochemistry

JOURNAL FREE ACCESS

1991 Volume 39 Issue 5 Pages 1234-1237

DOI https://doi.org/10.1248/cpb.39.1234

Details

Abstract

The crystal and molecular structures of hancokinol and hancolupenone from Cynanchum hancokianum have been determined by X-ray analysis. In the case of hancokinol, among four molecules related on a 4-fold rotation axis, hydrogen bondings between the hydroxyl groups of neighboring molecules are observed.

Corresponding author

Register with J-STAGE for free!