[CH2:1]([O:3][C:4]([C:6]1[C:7](Cl)=[N:8][C:9]([S:12][CH3:13])=[N:10][CH:11]=1)=[O:5])[CH3:2].[NH2:15][C:16]1[CH:17]=[C:18]2[C:22](=[CH:23][CH:24]=1)[NH:21][N:20]=[CH:19]2.C(N(CC)CC)C>CO>[CH2:1]([O:3][C:4]([C:6]1[C:7]([NH:15][C:16]2[CH:17]=[C:18]3[C:22](=[CH:23][CH:24]=2)[NH:21][N:20]=[CH:19]3)=[N:8][C:9]([S:12][CH3:13])=[N:10][CH:11]=1)=[O:5])[CH3:2]To the solution of 4-chloro-2-methylthio-5-pyrimidine carboxylic acid ethyl ester (5 g) and 5-aminoindazole (3.15 g) in methanol (70 ml) was added triethylamine (3.5 ml), and then the solution was reacted at 30° C. for 3 hr. The reaction mixture was cooled at room temperature, stirred at 20° C. for 1 hr. Then the reaction mixture was filtered and washed with methanol (20 ml). The obtained solid was dried at 40-50° C. in vacuo to obtain the desired compound (6.15 g, 87%).
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