[CH3:1][O:2][C:3]1[C:4]([NH2:10])=[N:5][CH:6]=[C:7]([CH3:9])[N:8]=1.[F:11][C:12]1[CH:13]=[C:14]([S:18](Cl)(=[O:20])=[O:19])[CH:15]=[CH:16][CH:17]=1>>[CH3:1][O:2][C:3]1[C:4]([NH:10][S:18]([C:14]2[CH:15]=[CH:16][CH:17]=[C:12]([F:11])[CH:13]=2)(=[O:20])=[O:19])=[N:5][CH:6]=[C:7]([CH3:9])[N:8]=1Prepared by the method of Example 1 using 3-methoxy-5-methyl-2-pyrazinamine and 3-fluorobenzenesulphonyl chloride.
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