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Two pregnane ester glycosides from Pergularia pallida
Authors:Naveen K. Khare  Maheshwari P. Khare  Anakshi Khare
Affiliation:Department of Chemistry, University of Lucknow, Lucknow, India
Abstract:Two new pregnane ester glycosides designated as pallidine and pallidinine have been isolated from the dried twigs of Pergularia pallida. Chemical and spectroscopic evidences are consistent with the structure 12,20-di-O-benzoyl sarcostin-3-O-β-d-oleandroside and 12,20-di-O-benzoyl-sarcostin-3-O-β-d-cymaropyranosyl(1 → 4)-β-d-oleandropyranoside for pallidine and pallidinine respectively.
Keywords:Asclepiadaceae  pallidine  pallidinine  steroid  pregnane ester mono and diglycoside.
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