Tannins of Rosaceous Plants. IX. Rugosins D, E, F and G, Dimeric and Trimeric Hydrolyzable Tannins with Valoneoyl Group(s), from Flower Petals of Rosa rugosa THUNB.

Tsutomu HATANO; Noboru OGAWA; Tetsuro SHINGU; Takuo OKUDA

doi:10.1248/cpb.38.3341

Tsutomu HATANO, Noboru OGAWA, Tetsuro SHINGU, Takuo OKUDA

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Keywords: tannin, dimeric hydrolyzable tannin, trimeric hydrolyzable tannin, Rosa rugosa, Rosaceae, valoneoyl group, rugosin D, rugosin E, rugosin F, rugosin G

JOURNAL FREE ACCESS

1990 Volume 38 Issue 12 Pages 3341-3346

DOI https://doi.org/10.1248/cpb.38.3341

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Abstract

Three dimeric hydrolyzable tannins having a valoneoyl group, rugosins D (1), E (2) and F (3), and a trimeric hydrolyzable tannin having two valoneoyl groups, rugosin G (4), were isolated from flower petals of Rosa rugosa (Rosaceae), and their structures including the orientation of the valoneoyl groups were established.

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