Tert-butyl 3-fluoro-4-[(6-nitrothieno[3,2-b]pyridin-7-yl) amino]piperidine-1-carboxylate → tert-Butyl 4-[(6-aminothieno[3,2-b]pyridin-7-yl)amino]-3-fluoropiperidine-1-carboxylate

Participants

Reaction Steps

A mixture of tert-butyl 3-fluoro-4-[(6-nitrothieno[3,2-b]pyridin-7-yl)amino]piperidine-1-carboxylate (0.32 g, 0.81 mmol) and 10% palladium on carbon (80 mg) in methanol (8 mL) was hydrogenated under balloon pressure of H2 at room temperature for 5 h. The reaction mixture was filtered, and the filtrate was concentrated to give the desired product (0.23 g, 78%) as a mixture of cis- and trans-isomers mixture. LCMS calculated for C17H24FN4O2S (M+H)+: m/z=367.2. Found: 367.1.

Provenance & Evidence