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Constituents of Cupuliferae, XVII: Triterpene Saponins and Falvonoids from Quercus laurifolia Michx.
Author(s) -
Romussi Giovanni,
Caviglioli Gabriele,
Pizza Cosimo,
de Tommasi Nunziatina
Publication year - 1993
Publication title -
archiv der pharmazie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.468
H-Index - 61
eISSN - 1521-4184
pISSN - 0365-6233
DOI - 10.1002/ardp.19933260906
Subject(s) - triterpene , chemistry , terpene , glycoside , diterpene , stereochemistry , chemical constituents , botany , traditional medicine , chromatography , biology , medicine , alternative medicine , pathology
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‐β‐ D ‐glucopyranosyl diester of the 2α,3β,19α,23‐tetrahydroxyurs‐12‐ene‐28‐oic acid ( 1 ). The structure of the previously described α‐ D ‐glucopyranosyl ester of the 2α,3β,19α,23‐tetrahydroxyurs‐12‐ene‐28‐oic acid was revised to β‐ D ‐glucopyranosyl ester of the 2α,3β,19α,23‐tetrahydroxyurs‐12‐ene‐28‐oic acid ( 2 ).