Phenylpropanoid Glycosides from the Leaves of Ananas comosus

Abstract

Two new phenylpropanoid glycosides, named β-D-(1-O-acetyl-3,6-O-diferuloyl) fructofuranosyl α-D-6′-O-acetylglucopyranoside (1) and β-D-(1-O-acetyl-3,6-O-diferuloyl) fructofuranosyl α-D-glucopyranoside (2), along with two known analogues (3–4) and four glycerides (5–8), were isolated from the EtOAc extract of the leaves of Ananas comosus. Their structures were elucidated on the basis of 1D- and 2D-NMR analyses, as well as HR-ESI-MS experiments. Compounds 1–4 showed significant antibacterial activities against Staphylococcus aureus and Escherichia coli.

Keywords

Ananas comosus Bromeliaceae Phenylpropanoid glycosides Antibacterial activities

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