C(OC(=O)[O:5][C:6]1[CH:11]=[C:10]([N+:12]([O-:14])=[O:13])[C:9]([F:15])=[CH:8][C:7]=1[Cl:16])C.C(=O)(O)[O-].[Na+]>CO.O>[Cl:16][C:7]1[CH:8]=[C:9]([F:15])[C:10]([N+:12]([O-:14])=[O:13])=[CH:11][C:6]=1[OH:5]To a solution of the product from Example 73B (0.87 g, 3.30 mmol) in methanol (20 mL) and water (1 mL) was added sodium bicarbonate (2.22 g, 26.4 mmol) and the mixture stirred at room temperature for 16 hours. The methanol was then removed under vacuum, dichloromethane (20 mL) was added to the mixture, the organic solution was washed with brine (50 mL), dried over anhydrous magnesium sulfate, filtered, and concentrated under vacuum to provide the title product (0.62 g, 98%).
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