Abstract
An ellagitannin with a 2,4-acyl group, named macabarterin (1), and a new ellagic acid glycoside, 3-O-methylellagic acid 4-O-â-D-xylopyranoside (2), were isolated from the stem bark extract of Macaranga barteri along with five known phenolic compounds, ellagic acid (3) [1], 3-O-methylellagic acid (4) [1], gallic acid (5) [2], methyl gallate (6) [3], and scopoletin (7) [4]. The structures of 1 and 2, as well as those of the known compounds, were elucidated on the basis of spectroscopic data and by comparison with reported data [1–4]. Compounds 1-5 and 7 were tested for their anti-inflammatory potential in a cell-based respiratory burst assay, compound 1 being found an inhibitor of the superoxides produced in the cellular system.
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