反应详情

To a solution of tert-butyl 3-(3-(5-fluoro-1-methylindolin-6-yl)-4-(phenylsulfonamido)-1H-pyrrolo[2,3-b]pyridin-1-yl)azetidine-1-carboxylate (D33) (489 mg, 0.847 mmol) in DCM (8 mL) was added 4M HCl in dioxane (4.23 mL, 16.93 mmol). The final mixture was stirred at RT for 6 hours. The mixture was concentrated in vacuo. The residue was dissolved in MeOH and passed through a SCX cartridge eluting with MeOH followed by 2M ammonia in MeOH to give the title compound (394 mg). LCMS (A): m/z (M+H)+ 478, C25H24FN5O2S requires 477 (acidic).

1. concentrationThe mixture was concentrated in vacuo
2. dissolutionThe residue was dissolved in MeOH
3. washeluting with MeOH