Methyl N-methyl-N-(6-substituted-5-nitropyrimidin-4-yl)glycinates (4a-n), obtained from 6-substituted-4-chloro-5-nitropyrimidines and sarcosine methyl ester (methyl 2-(methylamino)acetate), in the reaction with sodium alkoxides underwent transformations to give different products. N-methyl-N-(5-nitropyrimidin-4-yl)glycinates (4a,i,j) bearing amino and arylamino groups in the position 6 of the pyrimidine
Transformation of methyl N-methyl-N-(6-substituted-5-nitro-4-pyrimidinyl)aminoacetates into 4-methylamino-5-nitrosopyrimidines and 9-methylpurin-8-ones
N-Methyl-N-(6-substituted-5-nitro-4-pyrimidinyl)aminoacetic acid methyl esters under the treatment of sodium alkoxides, depending on the nature of substituents in 6 position of the pyrimidine ring, undergo ring closure and rearrangement to give 6-substituted-4-methylamino-5-nitrosopyrimidines or 9-meth ylpurin-8 -ones. (C) 2005 Elsevier Ltd. All rights reserved.
A modular approach to trim cellular targets in anticancer drug discovery
作者:Carla Ríos-Luci、Raquel Domínguez-Kelly、Leticia G. León、Elena Díaz-Rodríguez、Raimundo Freire、Atanasio Pandiella、Inga Cikotiene、José M. Padrón
DOI:10.1016/j.bmcl.2011.09.069
日期:2011.11
A Phenotypic Drug Discovery strategy was applied to study a set of pyrimidine analogs prepared by means of intramolecular oxidation-reduction reactions of N-substituted-N-(2,6-disubstituted-5-nitro-4-pyrimidinyl) aminoacetic acid methyl esters in basic media. The combined and rational use of specific assays allowed in short time reducing from all possible cellular targets to those involved in metaphase to anaphase transition. (C) 2011 Elsevier Ltd. All rights reserved.
Tunable Push–Pull Interactions in 5-Nitrosopyrimidines
The effect of push–pull interactions in a series of variously substituted 5-nitrosopyrimidines on the strength of intramolecularhydrogen bonds, the height of rotational barriers around formally single bonds, UV–vis spectra and electrochemical behavior is explored. Intramolecular charge transfer (ICT) leads to a shift of electron density from electron-donating substituents, which is readily observable