Dibenzyl (-)-(2R,3R)-2,3-Bis{3-[2,3-Bis(3,4-Dibenzyloxy)Phenyl]Prop-2-Enoyloxy}-L-Tartrate置于三乙基硅烷,Palladium Diacetate,三乙胺体系中,用 二氯甲烷 作为反应溶剂,以92%的收率获得产物菊苣酸
参考文献:A Convenient Synthesis Of The Echinacea-Derived Immunostimulator And Hiv-1 Integrase Inhibitor (−)-(2R,3R)-Chicoric Acid
标题:A Convenient Synthesis Of The Echinacea-Derived Immunostimulator And Hiv-1 Integrase Inhibitor (−)-(2R,3R)-Chicoric Acid
摘要:The Echinacea-Derived Immunostimulator And Hiv-1 Integrase Inhibitor (-)-Chicoric Acid (=2,3-Bis([3(3,4-Dihydroxyphenyl)-1-Oxoprop-2-Enyl]Oxy)Butanedioic Acid; 1A) Was Conveniently Prepared Via A Silane-Promoted Pd-Mediated Chemoselective Hydrogenolysis Of Its Perbenzylated Derivative 12A,Which Was Generated From An Efficient And Reliable Carbodiimide-Mediated Coupling Reaction Between The Caffeic Acid Dibenzyl Ether Derivative 7 And Commercially Available (+)-Dibenzyl L-Tartrate (9A). The Other Naturally occurring Dextrorotatory Chicoric Acid (1B) Can Be Similarly Prepared.
DOI:10.1002/1522-2675(200208)85:8<2328::Aid-Hlca2328>3.0.Co;2-X