摘要
Two new C-glucofuranosyl isoflavones of impurities in puerarin injection were isolated. Their structures were detemained to be 8-C-α-glucofuranosyl-7, 4P-dihydroxyisoflavone and 8-C-β-glucofuranosyl-7, 4'-dihydroxy- isoflavone by chemical and spectral analysis.
Two new C-glucofuranosyl isoflavones of impurities in puerarin injection were isolated. Their structures were detemained to be 8-C-α-glucofuranosyl-7, 4P-dihydroxyisoflavone and 8-C-β-glucofuranosyl-7, 4'-dihydroxy- isoflavone by chemical and spectral analysis.