Crotalionosides A-C, Three New Megastigmane Glucosides, Two New Pterocarpan Glucosides and a Chalcone C-Glucoside from the Whole Plants of Crotalaria zanzibarica
Okinawa Islands, threenewmegastigmaneglucosides, named crotalionosides A-C, two new pterocarpan glucosides and a chalcone C-glucoside were isolated together with two known flavonoidglycosides and one known megastigmaneglucoside. The structures of the new compounds were elucidated by a combination of spectroscopic analyses. The absolute configurations of allenic megastigmaneglucosides were determined