摘要:
A New type of antisweet principles, gymnemasaponins I-V has been isolated from Gymnema sylvestre. Their structures were established as novel D-glucosides of 3-beta, 16-beta,23,28-tetrahydroxyolean-12-ene on the basis of spectroscopic analysis. The antisweet activity of these compounds is discussed in relation to another type of active components, gymnemic acids I-VI.