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  • Title: Saponins from the seeds of Achras sapota.
    Author: Ahmed R, Rashid F, Ahmed VU, Mohammad FV, Noorwala M, Bibi N, Kazmi SU.
    Journal: J Asian Nat Prod Res; 2008; 10(1-2):7-16. PubMed ID: 18058375.
    Abstract:
    A new pentacyclic triterpenoid saponin (2) along with one known was isolated from the cotyledons of Achras sapota. Their structures were determined with the help of (1)H NMR, (13)C NMR and MS spectral data. The isolated compounds were named as 3-O-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranosyl-28-O-alpha-L-rhamnopyranosyl-(1-->3)-beta-D-xylopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranosyl protobassic acid (1) and 3-O-beta-D-glucopyranosyl-(1-->3)-beta-D-glucopyranosyl-28-O-alpha-L-rhamnopyranosyl-(1-->3)-beta-D-xylopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranosyl-16alpha-hydroxy protobassic acid (2). Compound 2 showed antibacterial activity against Gram positive and negative bacteria.
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