Sodium hydride → (S)-2-(7-(4-(allyloxy)-4-methylpiperidin-1-yl)-2-(((2,4-difluoro-6-((S)-pent-4-en-2-yloxy)benzyl)oxy)methyl)-5-methylpyrazolo[1,5-a]pyrimidin-6-yl)-2-(tert-butoxy)acetic acid

Participants

Reaction Steps

To a solution of (S)-ethyl 2-(7-(4-(allyloxy)-4-methylpiperidin-1-yl)-2-(iodomethyl)-5-methylpyrazolo[1,5-a]pyrimidin-6-yl)-2-(tert-butoxy)acetate (0.2 g, 0.342 mmol) and (S)-(2,4-difluoro-6-(pent-4-en-2-yloxy)phenyl)methanol (0.094 g, 0.411 mmol) in DMF (1 mL) was added sodium hydride (0.021 g, 0.513 mmol) and the mixture was stirred at rt. After 4 h, the mixture was diluted with EtOAc and washed with water and brine. The organic phase was dried (Na2SO4), filtered and concentrated and purified by Prep HPLC: to afford (S)-2-(7-(4-(allyloxy)-4-methylpiperidin-1-yl)-2-(((2,4-difluoro-6-((S)-pent-4-en-2-yloxy)benzyl)oxy)methyl)-5-methylpyrazolo[1,5-a]pyrimidin-6-yl)-2-(tert-butoxy)acetic acid (0.030 g, 0.046 mmol, 13.35% yield) as a colorless oil. LCMS (M+H) calcd for C35H47F2N4O6: 657.34. found: 657.5.

Provenance & Evidence