[CH2:1]([N:3]([CH:15]1[CH2:20][CH2:19][NH:18][CH2:17][CH2:16]1)[S:4]([C:7]1[CH:12]=[CH:11][C:10]([O:13][CH3:14])=[CH:9][CH:8]=1)(=[O:6])=[O:5])[CH3:2].C([O-])(O)=O.[Na+].[Na+].[I-].Cl[CH2:29][CH2:30][NH:31][C:32]([NH:34][C:35]1[CH:40]=[C:39]([CH3:41])[N:38]=[C:37]([CH3:42])[CH:36]=1)=[O:33]>C1COCC1>[CH3:41][C:39]1[CH:40]=[C:35]([NH:34][C:32](=[O:33])[NH:31][CH2:30][CH2:29][N:18]2[CH2:19][CH2:20][CH:15]([N:3]([CH2:1][CH3:2])[S:4]([C:7]3[CH:8]=[CH:9][C:10]([O:13][CH3:14])=[CH:11][CH:12]=3)(=[O:5])=[O:6])[CH2:16][CH2:17]2)[CH:36]=[C:37]([CH3:42])[N:38]=1A suspension of N-ethyl-4-methoxy-N-piperidin-4-yl-benzenesulfonamide (Example A4., 2.09 g, 7.0 mmol), NaHCO3 (3.4 g, 40 mmol), NaI (0.75 g, 5 mmol) and 1-(2-chloro-ethyl)-3-(2,6-dimethyl-pyridin-4-yl)-urea (Example D1, 1.14 g 5 mmol) in THF (30 mL) is stirred at 50° C. for 27 days. The mixture is quenched with Na2CO3 (150 mL) and extracted with CH2Cl2 (3×100 mL). The organic extracts are washed with sat. aq. Na2CO3 (70 mL), dried (Na2SO4), filtered and evaporated. The residue is purified by MPLC to provide the title compound.
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