A new diarylheptanoid, 3,5-dimethoxyl-17-hydroxyl-4,11,19-triketo-[7,0]meta-cyclophane, named as rubanone 1, was isolatedfrom the bark of Myrica rubra along with four known compounds 2-5. Their structures were elucidated by various spectroscopicmethods including 2D-NMR techniques or comparison with authentic samples.2008 Ding Yong Wang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.