STUDIES ON THE STRUCTURE OF A NEW ISOCOUMARIN GLUCOSIDE OF THE ROOTSPROUTS OF AGRIMONIA PILOSA LEDEB

Trans-p-hydroxycinnamic esters Ⅵ and an isocoumarin glucoside Ⅶ were isolated from the benzene and acetone extracts of the rootsprouts of Agrimonia pilosa Ledeb. On the basis of physicochemical properties, spectral data(UV,IR,NMR,MS,CI-MS-MS), GC and chemical degradation, Ⅵ was elucidated as trans-p-hybroxycinnamic esters of n-C₂₂,n-C_24～32,n-C₃₄,alcohols, Ⅶ was elucidated as agrimonolide-6-O-β-D-glucopyranoside. Ⅶ and trans-p-hydroxycinnamic esters of n-C_29～32 and n-C₃₄ alcohols are new compounds.