The re-investigation of the chemical constituents of the bark of the stem of Symplocos racemosa Roxb. led to the isolation of two new phenolic glycosides, Symconoside A (1) and Symconoside B (2). The structures of the new compounds were determined by 1D and 2D-homonuclear and heteronuclear NMR spectroscopy, chemical evidences, and by comparison with the published data of the closely related compounds. The phenolic glycosides 1 and 2 displayed in vitro inhibitory activity against phosphodiesterase-I with the IC50 values of 158 ± 0.02 and 900 ± 0.08 μM, respectively. © 2005 Verlag der Zeitschrift für Naturforschung.
CITATION STYLE
Ahmad, V. U., Zubair, M., Abbasi, M. A., Kousar, F., Ullah, F., Fatima, N., & Choudhary, M. I. (2005). Phenolic glycosides from Symplocos racemosa. Zeitschrift Fur Naturforschung - Section B Journal of Chemical Sciences, 60(10), 1101–1104. https://doi.org/10.1515/znb-2005-1014
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