[Cl:1][C:2]1[CH:7]=[C:6]([C:8]2[C:16]3[C:11](=[N:12][CH:13]=[C:14]([O:17][CH3:18])[CH:15]=3)[N:10](S(C3C=CC=CC=3)(=O)=O)[CH:9]=2)[CH:5]=[C:4]([Cl:28])[N:3]=1.[OH-].[K+]>C(O)C.O>[Cl:1][C:2]1[CH:7]=[C:6]([C:8]2[C:16]3[C:11](=[N:12][CH:13]=[C:14]([O:17][CH3:18])[CH:15]=3)[NH:10][CH:9]=2)[CH:5]=[C:4]([Cl:28])[N:3]=1A suspension of Example 149d (88.0 mg, 0.203 mmol) in ethanol (2 mL) was treated with a solution of potassium hydroxide (45.5 mg, 0.811 mmol) in water (0.5 mL). The reaction mixture was heated at 50° C. for 1.5 hours. After concentration, water was added to the residue and the mixture was sonicated. The solid was filtered, washed with water, and oven-dried to give 51.3 mg of the title compound.
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