参考标题:Bioactive Phytochemicals: Efficient Synthesis Of Optically Active Substituted Flav-3-Enes And Flav-3-En-3-O-R Derivatives 作者:Matthew Chilaka Achilonu,Moosa Mahmood Sedibe,Karabo Shale 摘要:3-O-Substituted Flav-3-Ene Derivative (3,5,7,3′,4′-Pentamethoxyflav-3-Ene) 17. The Reduction Of 4-(1,3,5-Trihydroxybenzene)-5,7,3′,4′-Tetra-O-Benzylflavan-3-One 19B With Hydrogen Afforded A New Compound: 3-Hydroxy-4-(1,3,5-Trihydroxybenzene)-5,7,3′,4′-Tetrahydroxyflavan-3-En-3-Ol 21 In Good Yield (95%), While The Acetylation Of 19A And 21 Afforded The Expected Novel Flav-3-En-3-Acetoxy Derivatives 20 (92%) And 22