[1] Lin, L.C.; Yang, L.L.; Chou, H.J. Phytochemistry. 2003, 62, 619-622. [2] Gunaherath, G.M.K.B.; Gunatilaka, A.A.L. J. Chem. Soc. Perkin Transaction 1. 1988, 407-410. [3] Gupta, A.; Rai, R.; Siddiqui, I.R.; Singh, J. Fitoterapia. 1998, 69, 420. [4] Nguyen, A.T.H.; Malonne, P.; Duez, R.; Vanhaelen, F.M.; Fontaine, V.J. Fitoterapia. 2004, 75, 500-504. [5] DellaGreca, M.; Previtera, L. Tetrahedron. 1996, 52, 13981-13990. [6] Bringmanna, G.; Münchbach, M.; Messer, K.; Koppler, D.; Michel, M.; Schupp, O.; Wenzel, M.; Louis, A.M. Phytochemistry. 1999, 51, 693-699. [7] Li, Y.; Li, X.F.; Kim, S.K.; Kang, J.S.; Choi, H.D.; Rho, J.R.; Son, B.W. Chem. Pharm. Bull. 2004, 52, 375-376. [8] Kusurkar, R.S.; Goswami. S.K. Tetrahedron. 2004, 60, 5315-5318. [9] Kawagishi, H.; Katsumi, R.; Sazawa, T.; Mizuno, T.; Hagiwara, T.; Nakamura, T. Phytochemistry. 1988, 27, 2777-2779. [10] Wahidulla, S.; D’Souza, L.; Kamat, S.Y. Phytochemistry. 1991, 30, 3323-3325. [11] González, A.G.; Fraga, B.M.; González, P.; Hernandez, M.G.; Ravelo, A.G. Phytochemistry. 1981, 20, 1919-1921. [12] Topçu, G.; Ulubelen, A. J. Nat. Prod. 1999, 62, 1605-1608. |