Abstract: The isolation of seven triterpenoid saponins (1−7) is reported, among them three new natural products (1−3), together with three new ionol-derived glycosides (8−10) from the MeOH extract of the leaves of Amaranthus caudatus (Amaranthaceae). All structures were elucidated by spectroscopic methods, including the concerted application of one-dimensional (1H, TOCSY, 13C, and 13C DEPT NMR) and two-dimensional NMR techniques (DQF−COSY, HSQC, HMBC, ROESY). A comparative study of seeds and leaves has been also carried out.
Studies on the Constituents of Amaranthus caudatus Leaves: Isolation and Structure Elucidation of New Triterpenoid Saponins and Ionol-Derived Glycosides
RASTRELLI, Luca;AQUINO, Rita Patrizia;DE SIMONE, Francesco;DE TOMMASI, Nunziatina
1998-01-01
Abstract
Abstract: The isolation of seven triterpenoid saponins (1−7) is reported, among them three new natural products (1−3), together with three new ionol-derived glycosides (8−10) from the MeOH extract of the leaves of Amaranthus caudatus (Amaranthaceae). All structures were elucidated by spectroscopic methods, including the concerted application of one-dimensional (1H, TOCSY, 13C, and 13C DEPT NMR) and two-dimensional NMR techniques (DQF−COSY, HSQC, HMBC, ROESY). A comparative study of seeds and leaves has been also carried out.File in questo prodotto:
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