A new phenylpropanoid, (+)-methyl 3-acetoxy-3-(7-methoxy-1,3-benzodioxol-5-yl) propanoate (1), was obtained from the 95% EtOH extract of entire plant of Peperomia tetraphylla. The structure was elucidated based on the spectral analysis (IR, 1-D and 2-D NMR and HRESIMS). The absolute configuration of 1 was determined as (3R) by referring to analogous compound's optical rotation. Cytotoxicity assays showed that compound 1 had a moderate inhibitory activity against the A549 cell line, weak inhibitory activity against the Hela and the HepG2 cell lines.
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Li et al. (2012) studied this question.
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