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Two bitter biphenyl glucosides from Swertia japonica
Y Ikeshiro1, T Kubota, Y Tomita
1Department of Pharmacognosy and Phytochemistry, Niigata College of Pharmacy, Niigata, Japan.
Planta Medica
|January 1, 1983
Abstract:
From the whole plants of Swertia japonica Makino a mixture of two new bitter biphenyl glucosides biphenosides A and B, was isolated along with three known secoiridoid glucosides by the application of droplet countercurrent chromatography (DCCC). The structure of the biphenyl glucoside was established by chemical degradation and spectroscopic methods.