Steroidal alkaloids from Solanum khasian um: Application of 13C NMR spectroscopy to their structural elucidation

The solasodine glycosides, solasonine, solamargine and khasianine have been isolated from berries of Solanum khasianum and characterized by 13C NMR spectroscopy. By application of this method, the structure of khasianine has been elucidated as O-α-l-rhamnosyl (1→4glu)-O (3)-β-d-glucopyranosyl-solasodine (β2-solamargine).