New prenylated isoflavones and a prenylated dihydroflavonol from Millettia pachycarpa
作者： Ashok K. Singhal , Ram P. Sharma , Gopalakrishna Thyagarajan , Werner Herz , Serengolam V. Govindan
DOI: 10.1016/0031-9422(80)85140-5
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摘要: Abstract Extraction of Millettia pachycarpa Benth. gave 5,7,4′-trihydroxy-6,8-diprenylisoflavone (1a), 5,7,4′-trihydroxy-6,3′-diprenylisoflavone (2a), 5,7,3′,4′-tetrahydroxy-6,8-diprenylisoflavone (3a) and (2R, 3R)-5,4′-dihydroxy-8-prenyl-6″,6″-dimethylpyrano[2″,3″: 7,6]-dihydroflavonol (4a) whose structures were established by chemical transformations spectroscopic means. Pectolinarigenin salvigenin isolated from Buddleia macrostachya
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