Two new isoarylbenzofuran diglucosides from the root bark of Morus alba

Abstract

Two new arylbenzofuran diglucopyranosides, (2″R)-(–)-moracin-O-5′,3″-β-d-diglucopyranoside (1) and (2″R)-(–)-moracin-P-5′,2″-β-d-diglucopyranoside (2), along with known arylbenzofurans, moracin M 6-β-d-glucopyranoside (3), and an isomeric mixture of R-(–)-moracin O (4) and R-(–)-moracin P (5), were isolated from the root bark of Morus alba L. The structure of the compounds was elucidated based on mass spectrometry, infrared, 1D and 2D nuclear magnetic resonance spectroscopic data.

Keywords::

• arylbenzofuran
• moracin O diglucopyranoside
• moracin P diglucopyranoside
• Morus alba

Acknowledgment

This study was financially supported by the Mental Health Food Development Program from the Korea Food Research Institute (20130352U0054101S000100).