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. 1999 Feb;50(3):481-4.
doi: 10.1016/s0031-9422(98)00566-4.

Steroidal saponins from Asparagus dumosus

V U Ahmad  1 , S M Khaliq-uz-Zaman, S Shameel, S Perveen, Z Ali
Affiliations

Steroidal saponins from Asparagus dumosus

V U Ahmad et al. Phytochemistry. 1999 Feb.

Abstract

A new steroidal saponin, dumoside, characterized as (20S)-3 beta, 16 beta-dihydroxy pregn-5-ene-22-carboxylic acid (22, 16)-lactone-3-O-beta-chacotrioside, was isolated from the whole plant of Asparagus dumosus Baker and the structure was deduced from spectral data. In addition to dumoside three more steroidal saponins characterized as 3 beta-dihydroxy pregn-5,16-dien-20-one 3-O-beta-chacotrioside, 3 beta, 22 alpha, 26-trihydroxyfurost-5-ene-3-O-beta-chacotrioside-26-O- beta-D-glucopyranoside and its corresponding 22 alpha-O methoxy analogue were also isolated for the first time from this source. The structures have been identified with the help of FAB-MS, 1H NMR, 13C NMR and extensive 2D NMR spectroscopy, as well as comparison with reported spectroscopic data.

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