REGIOSELECTIVE PREPARATION OF 2-AMINO-5-TRIFLUOROMETHYLPYRIMIDINE DERIVATIVES

摘要

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.