Principles of Indonesian Herbal Drugs Having an Antiulcerogenic Activity. I. Isolation and Identification of (±)-Catechin from Artocarpus integra MERR.

Abstract

From the leaves of Artocarpus integra MERR., which is used as a herbal drug in Indonesia, (±)-catechin was isolated as an active principle with an inhibitory effect on stress ulcer formation in restrained and water-immersed mice. The structure of (±)-catechin was elucidated on the basis of spectral comparison with authentic (+)-catechin.