[EN] SELECTIVE SYNTHESIS OF CF3-SUBSTITUTED PYRIMIDINES<br/>[FR] SYNTHÈSE SÉLECTIVE DE PYRIMIDINES SUBSTITUÉES EN CF3
申请人:PFIZER PROD INC
公开号:WO2005023780A1
公开(公告)日:2005-03-17
The present invention relates to a method of making a compound of the formula (I),wherein X1, X2 and R3-R4 are as defined herein. The method includes reacting a compound of the formula (II) with an amine of formula (III) (HNR3R4) in the presence of a Lewis Acid and a non-nucleophilic base. The 2,4-diamino pyrimidine moiety is a common component in a variety of biologically active drug-like molecules and pyrimidine derivatives have been found to be useful in the 10 treatment of abnormal cell growth, such as cancer, in mammals.
Selective synthesis of CF3-substituted pyrimidines
申请人:Kath Charles John
公开号:US20050101620A1
公开(公告)日:2005-05-12
The present invention relates to a method of making a compound of the formula
wherein X
1
, X
2
and R
3
—R
4
are as defined herein. The method includes reacting a compound of the formula
with an amine of formula 3 (HNR
3
R
4
) in the presence of a Lewis Acid and a non-nucleophilic base. The 2,4-diamino pyrimidine moiety is a common component in a variety of biologically active drug-like molecules and pyrimidine derivatives have been found to be useful in the treatment of abnormal cell growth, such as cancer, in mammals.
Compounds of Formula 1, as shown below and defined herein:
and pharmaceutically acceptable salts, synthesis, intermediates, formulations, and methods of disease treatment therewith, including cancers mediated at least in part by FAK.
Compounds of Formula 1, as shown below and defined herein:
and pharmaceutically acceptable salts, synthesis, intermediates, formulations, and methods of disease treatment therewith, including cancers mediated at least in part by FAK.
Selective addition of amines to 5-trifluoromethyl-2,4-dichloropyrimidine induced by Lewis acids
作者:Daniel T. Richter、John C. Kath、Michael J. Luzzio、Nandell Keene、Martin A. Berliner、Matthew D. Wessel
DOI:10.1016/j.tetlet.2013.06.025
日期:2013.8
A variety of 2,4-diamino-pyrimidine systems can be prepared from the corresponding 2,4-dichloropyrimidine by sequential addition of two amines, the first adding selectively to the 4-position. In contrast it was found that 2,4-dichloro-5-trifluoromethyl-pyrimidine yields a 1:1 mixture of the two possible isomers. Lewis acids were employed to increase the ratio of isomers to >10:1 in favor of the 2-addition product. Optimization of the effect of Lewis acid additives on this and other dichloropyrimidine systems will be discussed. (C) 2013 Elsevier Ltd. All rights reserved.