Stannous Chloride → 3-[2-(2,2-Difluoro-benzo[1,3]dioxol-4-yl)-2H-pyrazol-3-yl]-1-(3-methanesulfonyl-phenyl)-1H-pyridazin-4-one

Reaction equation

C[N:2](C)/[CH:3]=[CH:4]/[C:5]([C:7]1[C:12](=[O:13])[CH:11]=[CH:10][N:9]([C:14]2[CH:19]=[CH:18][CH:17]=[C:16]([S:20]([CH3:23])(=[O:22])=[O:21])[CH:15]=2)[N:8]=1)=O.[F:25][C:26]1([F:37])[O:30][C:29]2[CH:31]=[CH:32][CH:33]=[C:34]([NH:35]N)[C:28]=2[O:27]1.N([O-])=O.[Na+].[Sn](Cl)Cl>>[F:37][C:26]1([F:25])[O:30][C:29]2[CH:31]=[CH:32][CH:33]=[C:34]([N:35]3[C:5]([C:7]4[C:12](=[O:13])[CH:11]=[CH:10][N:9]([C:14]5[CH:19]=[CH:18][CH:17]=[C:16]([S:20]([CH3:23])(=[O:22])=[O:21])[CH:15]=5)[N:8]=4)=[CH:4][CH:3]=[N:2]3)[C:28]=2[O:27]1