Saurobacciosides A - C: three new glycosides from Sauropus bacciformis with their cytotoxic activity

Three new glycosides, named as saurobaccioside A (1), saurobaccioside B (2), saurobaccioside C (3), together with five known magastigmanes, canangaionoside (4), (6S,9S)-roseoside (5), cucumegastigm...