C[O:2][C:3](=[O:21])[C:4]1[CH:9]=[CH:8][C:7]([C:10]2[C:15]([Cl:16])=[CH:14][N:13]=[C:12]([NH:17][CH:18]3[CH2:20][CH2:19]3)[N:11]=2)=[CH:6][CH:5]=1.O.[OH-].[Li+]>C1COCC1.O.Cl>[Cl:16][C:15]1[C:10]([C:7]2[CH:8]=[CH:9][C:4]([C:3]([OH:21])=[O:2])=[CH:5][CH:6]=2)=[N:11][C:12]([NH:17][CH:18]2[CH2:20][CH2:19]2)=[N:13][CH:14]=14-(5-Chloro-2-cyclopropylaminopyrimidin-4-yl)-benzoic acid methyl ester (90 mg, 0.30 mmol) was dissolved in THF and 50 mg (1.2 mmol) of lithium hydroxide monohydrate dissolved in water was added. The reaction mixture was heated to 50° C. for 5 hours, cooled to room temperature, diluted with 1N HCl and extracted with ethyl acetate. The organic layer was dried over sodium sulfate and concentrated to afford 4-(5-chloro-2-cyclopropylaminopyrimidin-4-yl)-benzoic acid as a yellow solid, 78 mg, 0.27 mmol, 90% yield.
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