2 PHENETHYL ALCOHOL GLYCOSIDES FROM SCUTELLARIA-ORIENTALIS SUBSP PINNATIFIDA

Two new phenethyl alcohol glycosides, darendoside A and B (= deacyl ma rtynoside) were isolated from the methanolic extract of the aerial par ts of Scutellaria orientalis subsp. pinnatifida, along with four known glycosides, syringin, martynoside, leucosceptoside A and verbascoside . On the basis of chemical and spectral evidence the structures of dar endoside A and B were determined as beta-(4-hydroxyphenyl)ethyl O-beta -D-apiofuranosyl-(1 --> 2)-O-beta-D-glucopyranoside and beta-(3-hydrox y-4-methoxyphenyl)ethyl O-alpha-L-rhamnopyranosyl-(1 --> 3)-O-beta-D-g lucopyranoside (=deacyl martynoside), respectively.