| abstract |
The present invention provides an N-pyridazin-3-ylsulfonamide derivative useful as a therapeutic and / or preventive agent for central nervous system diseases and a pharmaceutically acceptable salt thereof. A compound represented by formula (1) or a pharmaceutically acceptable salt thereof. [Ring B is C6-10 aryl or 5-10 membered heteroaryl; R1A is halo, substituted / unsubstituted C1-10 alkyl, substituted / unsubstituted amino, etc .; R1B is H, halo, substituted / unsubstituted R1C and R1D are each independently H, halo, etc .; A1 and A2 are each independently H, C1-3 alkyl, etc .; R2 is a substituted / unsubstituted C1-10 alkyl, C6-10 aryl, 5-10 membered heteroaryl etc.] [Selection figure] None |