A novel chalcone 5′-bromo-2′-hydroxy-4,4′,6′-trimethoxy-chalcone, isoliquiritigenin-4,4′-dimethyl ether (2′-hydroxy-4,4′-dimethoxy chalcone) and 2′-hydroxy-3,4,4′,6′-tetramethoxy dihydrochalcone have been isolated from the leaves of Garcinia nervosa. Their structure have been elucidated on the basis of chemical and spectral evidences (1H NMR, 13C NMR, HMQC, NOE, IR, UV and mass spectra).
GopalkrishnanC., ShankaranyanaD., KameswearanC., and NazeemuddinS.K., Ind. J. Expt. Biol;1980, 18, 843.
2.
MahabusarakumW., WiriyachitraP., and PhongapaichitS., J. Sci. Soc. Thailand1986, 12, 239.
3.
MahabusarakumW., WiriyachitraP., and TaylerW.C., J. Natural Products1987, 50, 473.
4.
Clark-LewisJ.W., and PorterL.J., Aust. J. Chem., 1972, 75, 1943.
5.
MabryT.J., MarkhamK.R., and ThomasM.B., The Systematic Identification of the Flavonoids, 1970. (a) p. 336
6.
p. 337
7.
p. 229.
8.
MakrandiJ.K., and VanduaK., Syn. Commun., 1990, 20, 1885.
9.
AmyE.W., ShirkyA.P., SuesS.C., and PeterM., J. Org. Chem., 1992, 57, 4772-4775.
10.
ShinichiS., and HaoH.S., J. Org. Chem., 1991, 56, 4304-4307.
11.
VenkataramanK., The Chemistry of Flavonoid compounds (GeissmanT.A., ed.). 1962 p. 72. Pergamon Press, London; MarkhamK.R., and ChariV.M. in The Flavonoids. Advances in Research (HarboneJ.B., and MabryT.J. eds) 1982, Chap. 2, pp. 32.
12.
GibbsH.D., J. Biol. Chem.1927, 72, 649.
13.
MashhoodA.S., IlyasM., J. Org. Chem.1986, 51, 5415.
