A method for producing a compound or a salt thereof represented by a formula (I), comprising reacting a compound or a salt thereof represented by a formula (II) and an aniline derivative represented by a formula (III) in water or a mixed solvent of water and an organic solvent in the presence of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide and substantially in the absence of a base is disclosed,
wherein R
1
is a 4-[3-(dimethylamino)azetidin-1-yl]piperidin-1-yl group, a 4-(4-methylpiperazin-1-yl)piperidin-1-yl group, a 3-hydroxyazetidin-1-yl group or a methyl(1-methylpiperidin-4-yl)amino group, R
2
, R
3
, R
4
and R
5
may be the same or different and are each a hydrogen atom or a fluorine atom, and R
6
is a hydrogen atom or a halogen atom.
本发明涉及一种制备由式(I)表示的化合物或其盐的方法,包括在1-乙基-3-(3-二甲基
氨基丙基)碳二
亚胺的存在下,在
水或
水和有机溶剂的混合溶剂中,基本上不使用碱,使式(II)表示的化合物或其盐与式(III)表示的
苯胺衍
生物反应。其中,R1是4-[3-(二甲基
氨基)氮杂环丙基]
哌啶-1-基、4-(4-甲基
哌嗪-1-基)
哌啶-1-基、3-羟基氮杂环丙基或甲基(
1-甲基哌啶-4-基)
氨基基团,R2、R3、R4和R5可以相同也可以不同,分别是氢原子或
氟原子,R6是氢原子或卤素原子。