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. Author manuscript; available in PMC: 2013 Jul 9.
Published in final edited form as: J Ethnopharmacol. 2010 Mar 19;129(2):220–226. doi: 10.1016/j.jep.2010.03.008

Fig. 1. Chemical structures of Piper hispidum isolates and key HMBC correlations of 1.

Fig. 1

Chemical structures of Piper hispidum isolates and key HMBC correlations (1H to 13C, curved arrows) of 1.