A new diarylheptanoid glucoside,（8R,9R）-17-methoxy-2-oxatricyclo[13.2.2.1^（3.7）]icosa-l（17）,3（20）,4,6, 15,18-hexaene-4,9,10-triol-9-O-β-D-glucopyranoside（1）,namely jugcathayenoside,together with two known diarylheptanoids,（＋）-galeon（2） and 4-hydroxy-17-methoxy-2-oxatricyclo[13.2.2.1^（3,7） ]icosa-1（17）,3（20）,4,6,15,18-hexaene-9-one（3）,were isolated from the root bark of Juglans cathayensis. Their structures were elucidated on the basis of extensive spectroscopic data analysis.
Juan LiJia-Xiang SunHeng-Yi YuZu-Yu ChenXiao-Ya ZhaoHan-Li Ruan
