[Cl:1][C:2]1[C:3]([NH:11][CH:12]([C:14]2[CH:19]=[CH:18][C:17]([O:20][CH:21]([F:23])[F:22])=[CH:16][CH:15]=2)[CH3:13])=[N:4][CH:5]=[N:6][C:7]=1[CH:8](Cl)[CH3:9].[C:24]([O-:27])(=[O:26])[CH3:25].[K+].C(=O)([O-])[O-].[K+].[K+]>C(O)(=O)C>[C:24]([O:27][CH:8]([C:7]1[N:6]=[CH:5][N:4]=[C:3]([NH:11][CH:12]([C:14]2[CH:19]=[CH:18][C:17]([O:20][CH:21]([F:23])[F:22])=[CH:16][CH:15]=2)[CH3:13])[C:2]=1[Cl:1])[CH3:9])(=[O:26])[CH3:25]In 50 ml of acetic acid was dissolved 3.1 g of 5-chloro-6-(1-chloroethyl)-4-[1-(4-difluoromethoxyphenyl)ethylamino]-pyrimidine, and to the mixture were added 3.0 g of potassium acetate and 3.0 g of potassium carbonate. The mixture was refluxed under heating for 30 hours.
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