论文部分内容阅读
A novel caged-prenylxanthone xanthone,neobractatin(1),was isolated from the twig of Garcinia bracteata.Its structure was elucidated by spectroscopic methods,especially 2D NMR techniques.
A novel caged-prenylxanthone xanthone, neobractatin (1), was isolated from the twig of Garcinia bracteata. Its structure was elucidated by spectroscopic methods, especially 2D NMR techniques.