[CH3:1][O:2][CH2:3][CH2:4][NH2:5].[Cl:6][C:7]1[C:12]([Cl:13])=[CH:11][CH:10]=[CH:9][C:8]=1[S:14]([N:17]([C:26]1[C:31]([O:32][CH3:33])=[N:30][C:29](Cl)=[C:28]([Cl:35])[N:27]=1)COCC[Si](C)(C)C)(=[O:16])=[O:15]>>[Cl:6][C:7]1[C:12]([Cl:13])=[CH:11][CH:10]=[CH:9][C:8]=1[S:14]([NH:17][C:26]1[C:31]([O:32][CH3:33])=[N:30][C:29]([NH:5][CH2:4][CH2:3][O:2][CH3:1])=[C:28]([Cl:35])[N:27]=1)(=[O:15])=[O:16]Prepared by the method of Example 67 using 2-methoxyethylamine (3 mL) and 2,3-dichloro-N-(5,6-dichloro-3-methoxy-2-pyrazinyl)-N-{[2-(trimethylsilyl)ethoxy]methyl}benzenesulphonamide (0.24 g). Yield 0.08 g.
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