[O:1]=[S:2]1(=[O:29])[CH2:7][CH2:6][N:5]([C:8]([C:10]2[NH:11][C:12]3[C:17]([CH:18]=2)=[CH:16][C:15]([O:19][CH:20]2[CH2:25][CH2:24][N:23]([CH:26]([CH3:28])[CH3:27])[CH2:22][CH2:21]2)=[CH:14][CH:13]=3)=[O:9])[CH2:4][CH2:3]1.[CH:30](CS([O-])(=O)=O)([CH3:32])[CH3:31].C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C)C=O>[O:29]=[S:2]1(=[O:1])[CH2:7][CH2:6][N:5]([C:8]([C:10]2[N:11]([CH:30]([CH3:32])[CH3:31])[C:12]3[C:17]([CH:18]=2)=[CH:16][C:15]([O:19][CH:20]2[CH2:25][CH2:24][N:23]([CH:26]([CH3:27])[CH3:28])[CH2:22][CH2:21]2)=[CH:14][CH:13]=3)=[O:9])[CH2:4][CH2:3]1To a mixture of (1,1-dioxo-thiomorpholin-4-yl)-[5-(1-isopropyl-piperidin-4-yloxy)-1H-indol-2-yl]-methanone (Example 2, 100 mg, 1.0 eq.) and isopropyl-methanesulfonate (67 mg, 2.0 eq.) in dimethylformamide (4 mL) was added cesium carbonate (156 mg, 2.0 eq.). The solution was stirred 22 h at 95° C. The reaction mixture was concentrated in vacuo and the residue partitioned between water and methyl-tert-butylether. The aqueous layer was extracted with methyl-tert-butylether. The combined organic layer was washed with brine, dried over sodium sulfate, filtered, concentrated in vacuo and then purified on silica, eluting with cyclohexane/ethyl acetate. One fraction was isolated and dried in vacuo, to yield 52 mg (47%) of the desired product as off-white solid. MS (m/e): 462.5 (MH+, 100%)
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