STUDIES OF THE STRUCTURES OF NEW CINNAMOYL GLUCOSIDE FROM THE ROOTS OF VERONICASTRUM SIBIRICS (L.) PENNELL

Two new cinnamoyl glucoside namely sibirioside A(I), and sibirioside B(II),along with seven known compounds isoferulic acid(III),6-(4-methoxyferulpol )mioporoside(Ⅳ),scrophularioside(V),6-O-trans-feruloyl catalpol(VI), ferulic acid(VII )daucos1terol (VIII ) and β-sitosterol (IX)were isolated from the roots of Veronicastrum sibirica (L.) Pennell. Their structureswere determined by IR, MS , NMR(including 2D NMR)。