Kaempferol trisaccharide

Sesbinia sesbin (L.) Merrill. Indian Tian Qing (root, leaf, bark, seed)57 Saponins, triterpene glycosides, steroid glycosides, glycoalkaloids, kaempferol trisaccharide.342 343 344 Diuretic, irregular menses, externally for bug bites, antitumor. 

El-Sayed, N. H. 1991. A rare kaempferol trisaccharide anti-tumor promoter from Sesbania sesban. Pharmazie 46 679-680. 

Present at the 7-position of kaempferol with a -coumaric acid attached at the 4-hydroxyl of the first rhamnose and a known acylated branched trisaccharide at the 3-hydroxyl of the aglycone. 

Other trisaccharides which, it has been suggested, occur in combination with flavonoids in plants are 0-/3-D-glucopyranosyl-(l— 2)-0-a-ii-rhamno-pyranosyl-(l- )-D-glucopyranose as a kaempferol derivative in potato flowers,and a galactosylsophoroside of kaempferol in Pisum arvense. -However, for both, a great deal more work is required before these structures can be fully accepted. 

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