Solution phase synthesis of a library of tetrasubstituted pyrrole amides

被引:26
作者
Bianchi, Ivana [1 ]
Forlani, Roberto [1 ]
Minetto, Giacomo [1 ]
Peretto, Ilaria [1 ]
Regalia, Nickolas [1 ]
Taddei, Maurizio [1 ]
Raveglia, Luca F. [1 ]
机构
[1] NiKem Res, I-20021 Milan, Italy
来源
JOURNAL OF COMBINATORIAL CHEMISTRY | 2006年 / 8卷 / 04期
关键词
D O I
10.1021/cc060008q
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
An efficient strategy for the solution-phase parallel synthesis of a library of pyrrole-amides is described. Key reactions include functional homologation of beta-ketoesters with a set of aldehydes followed by oxidation to produce a series of differently substituted 1,4-dicarbonyl compounds. Rapid cyclization using a microwave-assisted Paal-Knorr reaction provided a set of 24 pyrrole esters that were further functionalized through a trimethylaluminum-mediated aminolysis to obtain a larger library of 288 diverse pyrrole-3-amides. The tetrasubstitution allows a good exploration of the chemical space around the central pyrrole core. The last step was entirely automated with a Bohdan Myriad personal synthesizer.
引用
收藏
页码:491 / 499
页数:9
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