Two new diarylheptanoids from the pericarps of Juglans regia L.

Two new cyclic diarylheptanoids juglanin A (1) and juglanin B (2) were isolated from the pericarps of Juglans regia L. Their structures were elucidated by various spectroscopic methods including 2D NMR techniques (COSY, HMQC, RMBC, NOESY) and HR-ESIMS. (c) 2007 Duo Long Di. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.