[EN] REGIOSELECTIVE PREPARATION OF 2-AMINO-5-TRIFLUOROMETHYLPYRIMIDINE DERIVATIVES [FR] PRÉPARATION RÉGIOSÉLECTIVE DE DÉRIVÉS DE 2-AMINO-5-TRIFLUOROMÉTHYLPYRIMIDINE
[EN] REGIOSELECTIVE PREPARATION OF 2 -AMINO-5-TRIFLUOROMETHYLPYRIMIDINE DERIVATIVES<br/>[FR] PRÉPARATION RÉGIOSÉLECTIVE DE DÉRIVÉS DE 2-AMINO-5TRIFLUOROMÉTHYLPYRIMIDINE
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2011018518A1
公开(公告)日:2011-02-17
The present invention relates to a method of making pyrimidines of formula (III) wherein X2 is a leaving group selected from the group consisting of: phenyloxy optionally substituted by 1-5 suitable substituents, heterocyclyl N-oxy optionally substituted by 1-5 suitable substituents, and heteroaryl N-oxy optionally substituted by 1-5 suitable substituents; R1 and R2 are substituents independently selected from the group consisting of hydrogen, an aromatic group and an aliphatic group, or taken together -N(R1)R2 can form a 4-11 membered aromatic or aliphatic ring; said method comprising reacting a compound of formula (I) with an amine of formula (Il) [HN(R1)R2] to form a compound of formula (III), wherein X1 is a leaving group.
The present invention relates to a process for making 2,4-differentiated 5-trifluoromethyl pyrimidines and 2-amino-5-trifluoromethyl-pyrimidine derivatives, which compounds are useful in the preparation of pharmacologically active compounds.
Regioselective preparation of 2-amino-5-trifluoromethylpyrimidine derivatives
申请人:Linz Guenter
公开号:US08729265B2
公开(公告)日:2014-05-20
The present invention relates to a method of making pyrimidines of formula (III) said method comprising reacting a compound of formula (I) with an oxygen, sulfur or nitrogen nucleophile of formula T-H; and reacting the compound obtained with an amine of formula (II) [HN(R1)R2] to form a compound of formula (III) wherein X1, X2, T, R1 and R2 have the meanings as defined herein.