A new phenylethanoid glycoside, cistanoside G (I), was isolated from Cistanchis Herba, the whole plant of Cistanche salsa (C. A. MEY.) G. BECK (Orobanchaceae), along with salidroside (p-hydroxyphenethyl, β-D-glucoside), syringin and (+)-pinoresinol.The structure of cistanoside G was determined to be 2-(4-hydroxyphenyl) ethyl O-α-L-rhamnopyranosyl-(1-, 3)-β-D-glucopyranoside (I) on the basis of chemical and spectral data.
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Karasawa et al. (1986) studied this question.