(R)-tert-butyl 1-(5-chloro-3-(3-methylbutanamido)-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamate → (R)-N-(4-(3-aminopiperidin-1-yl)-5-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-3-methylbutanamide hydrochloride

Participants

Reaction Steps

A solution of (R)-tert-butyl 1-(5-chloro-3-(3-methylbutanamido)-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamate (128 mg, 0.284 mmol) in neat TFA (3 mL) was stirred at room temperature for 30 minutes and concentrated in vacuo. The oily residue was evaporated from CH3CN (4×10 mL) to provide (R)—N-(4-(3-aminopiperidin-1-yl)-5-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-3-methylbutanamide hydrochloride (95 mg, 79% yield) as a solid. 1H NMR (400 MHz, (CD3)2SO) δ 11.77 (s, 1H), 9.26 (s, 1H), 8.22 (br s, 3H), 8.12 (s, 1H), 7.58 (br s, 1H), 3.47-3.31 (m, 3H), 3.25-3.17 (m, 1H), 3.13-3.08 (m, 1H), 2.25 (d, 2H), 2.14-2.09 (m, 2H), 1.87-1.81 (m, 1H), 1.74-1.63 (m, 1H), 1.54-1.47 (m, 1H), 0.98 (dd, 6H). LCMS (APCI+) m/z 350 (M+H)+.

Provenance & Evidence