[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]2[CH:18]=[CH:17][C:12]([C:13]([O:15]C)=[O:14])=[CH:11][N:10]=2)=[CH:5][CH:4]=1.[OH-].[Na+]>>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([C:9]2[CH:18]=[CH:17][C:12]([C:13]([OH:15])=[O:14])=[CH:11][N:10]=2)=[CH:7][CH:8]=1In a similar manner to that described in Example 2, a reaction was carried out using methyl 6-(4-methoxyphenyl)nicotinate (3.95 g) and aqueous sodium hydroxide solution (1N, 32.5 ml) and the reaction mixture was treated to afford the title compound (2.63 g) as colorless crystals.
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