Studies on Alismatis Rhizoma. III. Stereostructures of New Protostane-Type Triterpenes, Alisols H, I, J-23-Acetate, K-23-Acetate, L-23-Acetate, M-23-Acetate, and N-23-Acetate, from the Dried Rhizome of Alisma orientale.

Abstract

New protostane-type triterpenes termed alisols H, I, J-23-acetate, K-23-acetate, L-23-acetate, M-23-acetate, and N-23-acetate were isolated from Alismatis Rhizoma, the rhizome of Alisma orientale JUZEP. Their stereostructures were determined on the basis of physicochemical evidence.