[CH3:1][C:2]1[CH:3]=[CH:4][C:5]([O:8][C:9]2[CH:10]=[C:11]([CH2:15]O)[CH:12]=[CH:13][CH:14]=2)=[N:6][CH:7]=1.S(Cl)([Cl:19])=O.C(=O)(O)[O-].[Na+]>ClCCl>[Cl:19][CH2:15][C:11]1[CH:10]=[C:9]([CH:14]=[CH:13][CH:12]=1)[O:8][C:5]1[CH:4]=[CH:3][C:2]([CH3:1])=[CH:7][N:6]=1(3-(5-Methylpyridin-2-yloxy)phenyl)methanol from Step 1 (1.9 g, 8.8 mmol), in dichloromethane (25 mL), was cooled to 0° C., and treated dropwise with thionyl chloride (0.773 mL, 10.6 mmol). The reaction mixture was allowed to warm to ambient temperature and was stirred for 3 h. Saturated aqueous sodium bicarbonate (20 mL) was added and the mixture was stirred at RT for 5 min. The organic layer was separated, dried over sodium sulfate, filtered and concentrated by evaporation to afford the title compound (2.1 g, 99% yield) as an oil.
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