[1]. Sakaki T, et al. Structures of new quassinoid glycosides, yadanziosides A, B, C, D, E, G, H, and new quassinoids, dehydrobrusatol and dehydrobruceantinol from Brucea javanica (L.) Merr. Bulletin of the Chemical Society of Japan, 1985, 58(9): 2680-2686.