“…The investigation of the chemical constituents from Aristolochia tagala and their chemotaxonomic significance have been studied by Rui Liua and Hong-Chi Zhanga. 63 This work led to the isolation of 8 aristolactam alkaloids, namely aristolactam BII 44 , aristolactam II 48 , sauristolactam 65 , aristolactam I 47 , 7-methoxyaristolactam IV 55 , aristolactam AII 43 , aristolactam- N -β- d -glucoside 58 and cepharanone A N -β- d -glucoside 77 . Furthermore, this was the first report to isolate these eight except for sauristolactam from Aristolochia tagala (Fig.…”