NEW TRITERPENOIDS FROM RUBIA CORDIFOLIA VAR. PRATENSIS (RUBIACEAE)

Hideji ITOKAWA; Ya-Fang QIAO; Koichi TAKEYA; Yoichi IITAKA

doi:10.1248/cpb.37.1670

Hideji ITOKAWA, Ya-Fang QIAO, Koichi TAKEYA, Yoichi IITAKA

Author information

Keywords: rubiprasin A, rubiprasin B, rubiprasin C, Rubia cordifolia var. pratensis, Rubiaceae, oleanane-type, triterpenoid, ^1H-¹H COSY, ^1H-¹³ COSY, X-ray diffraction

JOURNAL FREE ACCESS

1989 Volume 37 Issue 6 Pages 1670-1672

DOI https://doi.org/10.1248/cpb.37.1670

Details

Abstract

From the roots of Rubia cordifolia var. pratensis, three new triterpenoids named rubiprasins A, B and C have been isolated and their structures were determined as 3β-acetoxyoleanane-13β, 15α-diol-12-one, 3β-acetoxyoleanace-13β-ol-12-one and 3β-acetoxyl-19α-hydroxyolean-12-en-28-oic acid respectively by various chemical and spectroscopic methods including ¹H-¹H COSY, ¹H-¹³C COSY and X-ray diffractions.

Corresponding author

Register with J-STAGE for free!