Studies on pyrrolidinones. Synthesis of new α-pyridones derivatives
作者:Natacha Malecki、Raymond Houssin、Jean-Pierre Héanichart、Daniel Couturier、Ferdinand Petra、Laurent Legentil、Benoîct Rigo
DOI:10.1002/jhet.5570400105
日期:2003.1
Dimethyl 7-methoxycarbonylmethyl-5-oxo-1,2,3,5-tetrahydro-indolizine-3,8-dicarboxylate was synthesized starting from methyl pyroglutamate. A study was made of the reactions of this highly functionalized pyridone with ethyl iodide, selenium oxide, isoamyl nitrite and formaldehyde. Literature reports that reaction of 4-(1-carbomethoxypropyl)-5-carbomethoxy-1,6-cyclopentano-2-pyridone with formaldehyde
从焦谷氨酸甲酯开始合成7-甲氧基羰基甲基-5-氧-1,2,3,5-四氢-吲哚嗪-3,8-二羧酸二甲酯。对这种高度官能化的吡啶酮与碘乙烷,氧化硒,亚硝酸异戊酯和甲醛的反应进行了研究。文献报道4-(1-甲氧基甲氧基丙基)-5-甲氧基甲氧基-1,6-环戊基-2-吡啶酮与甲醛反应导致喜树碱单内酯(26)前体的产率为95%。我们的实验产生了15%的这种单内酯和40%的新的双内酯(27)。