申请人:DAIICHI SANKYO COMPANY, LIMITED
公开号:US20210355087A1
公开(公告)日:2021-11-18
The present invention relates to a compound or a pharmacologically acceptable salt thereof having excellent tissue non-specific alkaline phosphatase inhibitory activity. The present invention provides a compound represented by the following formula (I): wherein X
1
represents a nitrogen atom or CR
9
, R
1
represents a hydrogen atom, a C
1
-C
6
alkyl group, or a C
1
-C
6
alkoxy group, R
2
represents a halogen atom, R
3
represents a hydrogen atom or a halogen atom, R
4
represents a hydrogen atom or a halogen atom, and R5 represents a C
1
-C
3
alkylsulfonyl group, a substituted C
1
-C
6
alkyl group, a substituted C
1
-C
6
haloalkyl group, a substituted C
1
-C
6
alkoxy group, or a substituted C
1
-C
6
alkylamino group, or a pharmacologically acceptable salt thereof.