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. 2015 May 6;10(5):e0126126. doi: 10.1371/journal.pone.0126126

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© 2015 Taha et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 1 — (A) Chemical structure of compound (1) and (2). (B). LCMS-QTOF total-ion-chromatogram (TIC) of (1) and (2) in methanolic leaf extract. (C) Product ions of (1) and (2) showing fragment ions at m/z 137 and m/z 177 by LCMS-QTOF. (D) COSY and HMBC correlation of compound (2).