Phenolic glycoside composition of leaves and callus cultures of Digitalis purpurea

Five phenolic glycosides were isolated from the leaves of Digitalis purpurea. Four of the glycosides were identified as desrhamnosyl acteoside, forsythiaside, purpureaside A and purpureaside B respectively and the structure of other one was elucidated as 3,4-dihydroxyphenethylalcohol-6-O-caffeoyl- β-D-glucoside. Four phenolic glycoside were isolated from the callus tissue of D. purpurea and identified as purpureaside A, purpureaside B, acteoside and purpureaside C respectively.