The Constituents of the Leaves of Comanthosphace japonica S. MOORE (Labiatae) : Isolation of Two New Flavone Glycosides, Comanthosides A and B

MUNEHISA ARISAWA; MASAKO FUKUTA; MINEO SHIMIZU; NAOKATA MORITA

doi:10.1248/cpb.27.1252

MUNEHISA ARISAWA, MASAKO FUKUTA, MINEO SHIMIZU, NAOKATA MORITA

Author information

Keywords: pectolinarigenin-7-O-β-D-glucuronide

JOURNAL FREE ACCESS

1979 Volume 27 Issue 5 Pages 1252-1254

DOI https://doi.org/10.1248/cpb.27.1252

Details

Abstract

Two new flavone glycosides, comanthoside A (I), C₂₄H₂₄O₁₂, mp 252-255°, and comanthoside B (II), C₂₃H₂₂O₁₂, mp 209-210°, have been isolated from fresh leaves of Comanthosphace japonica S. MOORE (Labiatae). The structures of I and II have been determined as 5, 7-dihydroxy-6, 4'-dimethoxyflavone-7-O-β-D-glucuronic acid methyl ester and -7-O-β-D-glucuronide, respectively. Compounds I and II were also detected in C. stellipila S.M. by PPC and TLC.

Corresponding author

Register with J-STAGE for free!