Journal of Organic Chemistry 2009-07-03

Application of the Ugi reaction for the one-pot synthesis of uracil polyoxin C analogues.

Andrew Plant, Peter Thompson, David M Williams

文献索引：J. Org. Chem. 74(13) , 4870-3, (2009)

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摘要

A simple, two-step synthesis of amide derivatives of uracil polyoxin C (UPOC) methyl ester using the Ugi reaction is described. The four components employed in the Ugi reaction are 2',3'-isopropylidine-protected uridine-5'-aldehyde, 2,4-dimethoxybenzylamine, an isoxazolecarboxylic acid, and the convertible isonitrile N-(2-{[(tert-butyldimethylsilyl)oxy]methyl}phenyl)carbonitrile. Following the Ugi reaction, treatment with HCl in MeOH achieves deprotection of the isopropylidene group and the N-benzyl group and conversion of the isonitrile-derived amide (the Ugi product) into the corresponding methyl ester. The procedure is amenable to automated multiparallel synthesis of novel compounds related to the polyoxin and nikkomycin nucleoside-peptide antibiotics.

相关化合物

  • 2,4-二甲氧基苄胺

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