Glycosides from Hypericum

Kitanov, G. M., Brflavone, flavonol, and xanthone glycosides from Hypericum aucheri, Chem. Nat. Compd, 1988, 24, 390-391. 

Ishiguro K, Yamamoto R, Oku H. Patulosides A and B, novel xanthone glycosides from cell suspension cultures of Hypericum patulum. J Nat Prod 62(6), 906-908,1999. 

Figure 8 Thin-layer chromatography of Hypericum perforatum. The chromatograms show no important differences between the herbai drug and the extract except the red spots in front. Both spots are the resuit of chiorophyll, which is eliminated by the extraction procedure. Red spots Hypericin and pseudohypericin yeiiow and orange spots fiavonoids (glycosides R, 0.5 agly-cones R, 0.8) blue spot ubiquitous plant acids. Reference traces on the left Hypericin chlorogenic acid and quercetin. (Reproduced with permission from Beat Meier, Zeller AG, Herbal Remedies, Romanshorn, Switzerland.)...

In 1999, two new xanthone glycosides patuloside A (41) and patuloside B (42) were isolated from the cell suspension cultures in the callus tissue cultures 0. Hypericum patulum (Figure 7b) [29],... 

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