Two new compounds, cistanosides H (II) and I (III), were isolated from Cistanchis Herba, the whole plant of Cistanche salsa (C. A. MEY.) G. BECK (Orobanchaceae), together with a known compound, decaffeoylacteoside (I). The structures of II and III were determined to be 2-(3, 4-dihydroxyphenyl) ethyl O-H. Kobayashi, H. Karasawa, T. Miyase, S. Fukushima, Chem, Pharm. Bull., O-α-L-rhamnopyranosyl-(1→3)-2-O-acetyl-β-Dglucopyranoside and O-H. Kobayashi, H. Karasawa, T. Miyase, S. Fukushima, Chem, Pharm. Bull., -L-rhamnopyranosyl-(1→3)-(4-O-p-coumaroyl)-D-glucopyranose, respectively, on the basis of chemical and spectral data.
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Karasawa et al. (1986) studied this question.