Cl[C:2]1[C:7](C2C=CC=CC=2)=[N:6][NH:5][C:4](=[O:14])[CH:3]=1.[C:15]([O-])([O-])=[O:16].[K+].[K+].Br[CH2:22][C:23]1[CH:28]=[CH:27][C:26]([O:29][CH3:30])=[CH:25][CH:24]=1.CCOC(C)=O>CN(C=O)C.[Cl-].[Na+].O>[CH3:15][O:16][C:2]1[CH:7]=[N:6][N:5]([CH2:22][C:23]2[CH:28]=[CH:27][C:26]([O:29][CH3:30])=[CH:25][CH:24]=2)[C:4](=[O:14])[CH:3]=1
To a stirring solution of 5-chloro-6-phenylpyridazin-3(2H)-one (78 mg, 0.618 mmol) in DMF (3 mL) at room temperature under argon was added K2CO3 (256 mg, 1.855 mmol), and was followed by addition of 1-(bromomethyl)-4-methoxybenzene (149 mg, 0.742 mmol). The resulting reaction mixture was stirred at room temperature overnight. EtOAc (20 mL) and brine (30 mL) were added to the reaction mixture. Layers were separated. Organic layer were washed with water (15 mL), and brine (15 mL). Organic phase was dried (MgSO4), filtered and concentrated. Crude product (117 mg) (MS (ESI) 247 (M+H)) was used directly to next step.
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