[CH3:1][O:2][C@H:3]1[C@@H:8]([NH:9][C@@H:10]2[CH2:17][C@H:13]3[CH2:14][NH:15][CH2:16][C@@:12]3([C:18]([N:20]3[CH2:29][CH2:28][C:27]4[N:26]=[CH:25][C:24]([C:30]([F:33])([F:32])[F:31])=[CH:23][C:22]=4[CH2:21]3)=[O:19])[CH2:11]2)[CH2:7][CH2:6][O:5][CH2:4]1.[S:34](N)([NH2:37])(=[O:36])=[O:35]>COCCOC>[CH3:1][O:2][C@H:3]1[C@@H:8]([NH:9][C@@H:10]2[CH2:17][C@H:13]3[CH2:14][N:15]([S:34]([NH2:37])(=[O:36])=[O:35])[CH2:16][C@@:12]3([C:18]([N:20]3[CH2:29][CH2:28][C:27]4[N:26]=[CH:25][C:24]([C:30]([F:33])([F:31])[F:32])=[CH:23][C:22]=4[CH2:21]3)=[O:19])[CH2:11]2)[CH2:7][CH2:6][O:5][CH2:4]1A mixture of Example 1 (42 mg, 0.0896 mmol) and sulfamide (15 mg, 0.155 mmol) in DME (1 mL) in a sealed tube was heated at 90° C. overnight. After condensation, the residue was purified by CombiFlash (eluent: 5% 7N NH3 in methanol in DCM) to give the product as a yellow oil. LC/MS: C23H32F3N5O5S: m/z 548.2 (M+H).
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