Tannins and related polyphenols of euphorbiaceous plants. XI. Three new hydrolyzable tannins and a polyphenol glucoside from Euphorbia humifusa

DOI: 10.1248/cpb.42.1803

Source and publish data:

Chemical and Pharmaceutical Bulletin p. 1803 - 1807 (1994)

Update date:2022-08-11

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Authors:

Yoshida Yoshida

Amakura Amakura

Liu Liu

Okuda Okuda

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Article abstract of DOI:10.1248/cpb.42.1803

Three new hydrolyzable tannins, euphormisins M₁, M₂ and M₃, were isolated from Euphorbia humifusa Willd., and respectively characterized as 1,3,6-tri-O-galloyl-4-O-brevifolincarboxyl-β-D-glucose (19), an oxidative metabolite (23) of geraniin, and 1,3,6-tri-O-galloyl-α-D-glucose (18), by spectroscopic and chemical methods. A new ellagic acid glucoside (16) and fifteen known tannins, including geraniin (8) and four dimers [euphorbins A (13), B (14), excoecarianin (15) and eumaculin A (12)], were also isolated.

Full text of DOI:10.1248/cpb.42.1803

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