A new xanthone 1,3,6-trihydroxy-8-methoxyxanthone, was isolated from chloroform extract of the whole plant of Hoppea fastigiata and the structure was elucidated on the basis of spectroscopic and chemical studies. The xanthone molecule has an unusual oxygenation pattern (1,3,6, 8) and is of chemotaxonomic interest.
HookerJ.D., The Flora of British India, Vol. IV, L. Reeve and Co., London, 1882, pp. 100.
2.
(a) MukherjeeK.S., ChakrabortyC. K., LahaS., BhattacharyaD., and ChatterjeeT. P., Int. J. Pharmacognosy, 1991, 29, 225; (b) K. S. Mukherjee, C. K. Chakraborty, T. P. Chatterjee, D. Bhattacharya and S. Laha, Phytochemistry, 1991, 30, 1036; (c) K. S. Mukherjee, T. K. Manna, S. Laha and C. K. Chakraborty, Int. J. Pharmacognosy, 1994, 32, 201.
3.
(a) YatesP., and SoutG. H., J. Am. Chem. Soc., 1958, 80, 1691; (b) K. Hostettmann, R. Tabacchi and A. J. Guillarmod, Helv. Chem. Acta., 1974, 57, 294; (c) A. V. Rama Rao, M. R. Sharma, K. Venkataraman and S. S. Yemul, 1974, 13, 1241.
4.
MarkhamK.R., Techniques of Flavonoid Identification, Academic Press, London, 1982.
5.
(a) DhasmanaH., and GargH. S., Phytochemistry, 1970, 29, 961; (b) B. Jackson, H. D. Locksley and F. Scheinmann, J. Chem. Soc. (C), 1967, 785.
6.
BudzikiewiczH., DjerassiC., and WilliamsD. H., Structure Elucidation of Natural Products by Mass Spectroscopy, Vol. 2, Holden-Day Inc., 1964, pp. 262.
