C(=O)([O-])[O-].[K+].[K+].[CH3:7][O:8][C:9]1[CH:15]=[CH:14][C:12]([NH2:13])=[CH:11][CH:10]=1.[Br-].C([N+]1(C)[CH2:29][CH2:28][C:27](=[O:30])[CH2:26][CH2:25]1)C1C=CC=CC=1>C(O)C.O>[CH3:7][O:8][C:9]1[CH:15]=[CH:14][C:12]([N:13]2[CH2:29][CH2:28][C:27](=[O:30])[CH2:26][CH2:25]2)=[CH:11][CH:10]=1Anhydrous potassium carbonate was added to a solution of 4-methoxyaniline (1.2 g, 9.8 mmol) in ethanol (10 mL) followed by a dropwise addition of a solution of compound of example 116 (2.77 g, 9.8 mmol) in water (3.0 mL). The reaction mixture was heated at 100° C. for 1 h., allowed to cool to room temperature, poured into ice water (100 mL) and extracted using EtOAc (3×50 mL). The organic extract was washed with water, dried (anhydrous Na2SO4) and concentrated to get the title compound.
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