[CH3:1][S:2]([NH:5][C:6]1[CH:7]=[C:8]2[C:14]([C:15]3[CH:16]=[C:17]([NH:21][C@H:22]([C:26]([NH:28][CH2:29][C:30]([F:33])([F:32])[F:31])=[O:27])[CH:23]([CH3:25])[CH3:24])[CH:18]=[N:19][CH:20]=3)=[CH:13][N:12](COCC[Si](C)(C)C)[C:9]2=[N:10][CH:11]=1)(=[O:4])=[O:3].C(O)(C(F)(F)F)=O.C(N)CN.[OH-].[Na+]>C(Cl)Cl.CS(C)=O>[CH3:1][S:2]([NH:5][C:6]1[CH:7]=[C:8]2[C:14]([C:15]3[CH:16]=[C:17]([NH:21][C@H:22]([C:26]([NH:28][CH2:29][C:30]([F:33])([F:32])[F:31])=[O:27])[CH:23]([CH3:25])[CH3:24])[CH:18]=[N:19][CH:20]=3)=[CH:13][NH:12][C:9]2=[N:10][CH:11]=1)(=[O:4])=[O:3]To a solution of N2-[5-(5-[(methylsulfonyl)amino]-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-pyrrolo[2,3-b]pyridin-3-yl)pyridin-3-yl]-N-(2,2,2-trifluoroethyl)valinamide 5-3a (57 mg, 0.093 mmol) from step 1 in DCM (2 mL) was added TFA (0.714 mL, 9.27 mmol) and the resultant mixture was stirred for 2 h. The mixture was concentrated in vacuo, resuspended in MeOH (1 mL) and to this was added ethylenediamine (0.013 mL, 0.185 mmol) and sodium hydroxide (10 M aq) (0.065 mL, 0.649 mmol). After 18 h, the reaction was transferred to vial with an additional 1 mL of dimethylsulfoxide and this solution was purified by mass triggered reverse phase HLPC. The fractions containing product 5-3 were basified with NaHCO3, dried over MgSO4, filtered and concentrated.
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