3,5-Difluoro-4-(tributylstannyl)pyridine → 5-amino-N-[5-(5-amino-3,3-difluoro-azepan-1-yl)-1-methyl-pyrazol-4-yl]-2-(3,5-difluoro-4-pyridyl)thiazole-4-carboxamide

Participants

Reaction Steps

Following the procedure for Example 422 starting from tert-butyl 1-(4-(5-(tert-butoxycarbonyl-amino)-2-bromothiazole-4-carboxamido)-1-methyl-1H-pyrazol-5-yl)-6,6-difluoroazepan-4-ylcarbamate and 3,5-difluoro-4-(tributylstannyl)pyridine gave 438 as a white solid (68 mg, 43% over two steps). 1H NMR (400 MHz, d6-DMSO) δ 8.83 (s, 1H), 8.67 (s, 2H), 7.78 (s, 2H), 7.61-7.56 (m, 1H), 3.79-3.56 (m, 4H), 3.46-3.33 (m, 1H), 3.37-3.16 (m, 2H), 3.16-3.06 (m, 1H), 2.35-2.08 (m, 2H), 1.91-1.78 (m, 1H), 1.81-1.60 (m, 3H). LCMS (ES+) m/z 485 (M+1)

Provenance & Evidence