by substructure only
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1. Six new compounds from the heartwood of Diospyros maritima
By Kuo, Yueh-Hsiung; Chang, Chi-I.
From Chemical & Pharmaceutical Bulletin (2000), 48(8), 1211-1214. Language: English, Database: CAPLUS
Six new compds., diospyrolide, diospyrolidone, di-Et (2R)-malate, 3-(E)-coumaroylbetulin-28-yl Et nonanedioate, 3-(E)-coumaroylbetulin-28-yl Et succinate, and 3-(E)-coumaroylbetulin-28-yl Et (2R)-2-hydroxysuccinate, were isolated from the heartwood of Diospyros maritima. Diospyrolide and diospyrolidone are novel trinorlupanes, and the latter three are lupane derivs. Their structures were detd. using spectral and chem. methods.
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