Alkaloids from Xylopia parvifolia and Xylopia nigricans (Annonaceae)

Shanmugam Puvanendran, Tharmaraja Manoranjan, Anura Wickramasinghe, D. Nedra Karunaratne, Vijaya Kumar, Siril Wijesundara, Gavin Carr, Raymond Andersen and Veranja Karunaratne 1 Department of Chemistry, Faculty of Science, University of Peradeniya, Peradeniya. 2 Royal Botanic Gardens, Peradeniya. 3 Departments of Chemistry & Earth and Ocean Sciences, Faculty of Science, University of British Columbia, Vancouver, B.C., Canada. J.Natn.Sci.Foundation Sri Lanka 2010 38 (1): 75-76