STUDIES ON THE CHEMICAL COMPONENTS OF RHODIOLA CRENULATA

Six chemical components I～IV were isolated from the roots of Rhodiolacrenulata (Crassulaceae). Five ( I ～V ) of them were identified as known salidroside(I),p- tyrosol(II),pyrogallol, gallic acid, and β- sitosterol, based on comparison of itsRf(TLC), mmp and spectral data with those of authentic samples. The sixth componentwas found to be a new Δ¹- isopentenyl- 3-O-β-D-glucopyranoside and namedcrenulatin(VI). Its structure was confirmed on the basis of its spectral data(IR, MS,¹H-and¹³C- NMR).