申请人:SATO PHARMACEUTICAL CO., LTD.
公开号:US20200190038A1
公开(公告)日:2020-06-18
The present invention provides a method for producing a difluoromethylene compound and an intermediate thereof, which are useful in the field of pharmaceuticals.
Specifically provided is a method for producing a difluoromethylene compound, including a step of allowing a compound represented by formula (6):
[wherein L
1
represents a halogen atom, a cyano group, a lower alkyl group, a halo-lower alkyl group, a cycloalkyl group, a lower alkoxy group, a halo-lower alkoxy group, or a hydroxy lower alkyl group; R
1
represents a lower alkyl group, a halogen atom, a halo-lower alkyl group, a cycloalkyl group, a cyano group, or a hydroxy lower alkyl group; and W represents a nitrogen atom or a methine group] to react with a compound represented by formula (7):
[wherein R
2
represents a lower alkyl group, a halo-lower alkyl group, a cycloalkyl group, a lower alkenyl group, or an aralkyl group; and R
3
represents a chlorine atom, a bromine atom, or an iodine atom].
本发明提供了一种用于生产二氟甲烯基化合物及其中间体的方法,该方法在药物领域中非常有用。具体提供了一种生产二氟甲烯基化合物的方法,包括以下步骤:允许由式(6)表示的化合物与由式(7)表示的化合物发生反应。在式(6)中,L1代表卤素原子、氰基、低碳基团、卤代低碳基团、环烷基团、低烷氧基团、卤代低烷氧基团或羟基低碳基团;R1代表低碳基团、卤素原子、卤代低碳基团、环烷基团、氰基或羟基低碳基团;W代表氮原子或甲基基团。在式(7)中,R2代表低碳基团、卤代低碳基团、环烷基团、低烯基基团或芳基基团;R3代表氯原子、溴原子或碘原子。