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EnglishIn addition to fourteen known glycosides from leaves of Quercus laurifolia Michx., a new acylated triterpene soponin has been isolated and identified as 3-O-galloyl-28-beta-D-glucopyranosyl diester of the 2alpha,3beta,19alpha,23-tetrahydroxyurs-12-ene-28-oic acid (1). The structure of the previously described alpha-D-glucopyranosyl ester of the 2alpha,3beta,19alpha,23-tetrahydroxyurs-12-ene-28-oic acid was revised to beta-D-glucopyranosyl ester of the 2alpha,3beta,19alpha,23-tetrahydroxyurs-12-ene-28-oic acid (2).
http://hdl.handle.net/11386/3292477| Titolo: | Constituents of Cupuliferae. XVII. Triterpene saponins and flavonoids from Quercus laurifolia Michx. |
| Autori interni: | PIZZA, Cosimo DE TOMMASI, Nunziatina |
| Data di pubblicazione: | 1993 |
| Rivista: | ARCHIV DER PHARMAZIE |
| Abstract: | In addition to fourteen known glycosides from leaves of Quercus laurifolia Michx., a new acylated triterpene soponin has been isolated and identified as 3-O-galloyl-28-beta-D-glucopyranosyl diester of the 2alpha,3beta,19alpha,23-tetrahydroxyurs-12-ene-28-oic acid (1). The structure of the previously described alpha-D-glucopyranosyl ester of the 2alpha,3beta,19alpha,23-tetrahydroxyurs-12-ene-28-oic acid was revised to beta-D-glucopyranosyl ester of the 2alpha,3beta,19alpha,23-tetrahydroxyurs-12-ene-28-oic acid (2). |
| Handle: | http://hdl.handle.net/11386/3292477 |
| Appare nelle tipologie: | 1.1.2 Articolo su rivista con ISSN |
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