AbstractA novel bibenzopyran named bimalloapelta (1) was synthesized relying on electrooxydation of malloapelta B by cyclic voltammetry in acetonitril adding LiClO4 0.1 M as supporting electrolyte. Its structure determination based on extensive NMR studies and ESI mass spectral measurements. The new compound showed significant cytotoxicity againsts two cancer cell lines as human hepatocellular carcinoma (Hep-2; IC50: 0.46 µg/m) and rhabdosarcoma (RD; IC50: 0.33 µg/m). These results were the same that of malloapelta B (Hep-2, IC50: 0.49 µg/ml and KB, IC50: 0.54 µg/ml).
Minh, C.V., Kiem, P.V., Huong, H.T., Nam, N.H., Lee, J.J., and Kim, Y.H. (2005), Chemical investigations and biological studies of Mallotus apelta, VI. Cytotoxic constituents from Mallotus apelta, Journal of Chemistry, vol. 43(1), pp. v-vi.
Weinberg, N.L. (1974), Technique of electroorganic synthesis, John Wiley & Sons Press, vol. V, part I.
Silverstein, R.M. and Webster, F.X. (1998), Spectrometric Identification of Organic Compounds, Six Edition, John Wiley & Sons, Inc. Press, p. 212.
Lee, H.J., Park, S.Y., Kim, J.S., Song, H.M., Suh, M.E., and Lee, C.O. (2003). Bioorg. Med. Chem., vol. 11, pp. 4791-4796.
Likhitwitayawuid, K., Angerhofer, C.K., Cordell, G.A., and Pezzuto, J.M. (1993), J. Nat. Prod., 56, pp. 30-38.
Minh, C.V., Kiem, P.V., Huong, L.M., and Kim, Y.H. (2004), Archives of Pharmacal Research, 27, pp. 734-737.