📜2-羟基-3-硝基吡啶-5-羧酸置于吡啶,氯化亚砜,三乙胺体系中,用 乙腈 用作溶剂,化学反应 4.0H,反应生成6-羟基-5-硝基吡啶-3-甲酸甲酯
参考文献:Solid Phase Synthesis Of 1,3,5-Trisubstituted Pyridin-2-Ones
标题:Solid Phase Synthesis Of 1,3,5-Trisubstituted Pyridin-2-Ones
摘要:The Solid Phase Synthesis Of 1,3,5-Trisubsituted Pyridin-2-Ones Is Reported Via Selective (Nh)-N-1-Alkylation Of 3-Amino-5-Carbomethoxy-1H-Pyridin-2-One With A Solid-Supported Halo-Acid. Coupling Of An Acid To Solid-Supported 3-Aminopyridinone Was Followed By Saponification Of The Methyl Ester To Give The Acid. Activation Of The Acid Via The Pentafluorophenyl Ester Allowed Reaction With An Amine,And Cleavage From The Solid Support With Tfa:H2O (95:5) Provided 1,3,5-Trisubstituted Pyridin-2-Ones. (C) 1999 Elsevier Science Ltd. All Rights Reserved.
Doi:10.1016/s0040-4039(98)02628-8