(S)-Methyl 2-(5-(4-(allyloxy)-4-methylpiperidin-1-yl)-2-(3-bromophenyl)-7-methylimidazo[1,2-a]pyridin-6-yl)-2-(tert-butoxy)acetate → Methyl(2S)-2-(tert-butoxy)-2-[2-(3-{4,5-difluoro-2-[(2S)-pent-4-en-2-yloxy]phenyl}phenyl)-7-methyl-5-[4-methyl-4-(prop-2-en-1-yloxy)piperidin-1-yl]imidazo[1,2-a]pyridin-6-yl]acetate

Participants

Reaction Steps

Prepared in 72% yield from (S)-(4,5-difluoro-2-(pent-4-en-2-yloxy)phenyl)boronic acid and (S)-methyl 2-(5-(4-(allyloxy)-4-methylpiperidin-1-yl)-2-(3-bromophenyl)-7-methylimidazo[1,2-a]pyridin-6-yl)-2-(tert-butoxy)acetate following the procedure for (S)-methyl 2-(5-(4-(allyloxy)-4-methylpiperidin-1-yl)-2-(4′-fluoro-2′-((S)-pent-4-en-2-yloxy)-[1,1′-biphenyl]-3-yl)-7-methylimidazo[1,2-a]pyridin-6-yl)-2-(tert-butoxy)acetate. 1H NMR (400 MHz, CDCl3) δ 8.07-7.88 (m, 3H), 7.51-7.38 (m, 3H), 7.32 (br. s., 1H), 6.92-6.74 (m, 1H), 6.14-6.00 (m, 2H), 5.80-5.65 (m, 1H), 5.51-5.40 (m, 1H), 5.12-4.97 (m, 3H), 4.28-4.17 (m, 1H), 4.05-3.95 (m, 3H), 3.86-3.77 (m, 1H), 3.69 (s, 3H), 3.07-2.97 (m, 1H), 2.79-2.65 (m, 1H), 2.47 (s, 3H), 2.41-2.30 (m, 1H), 2.29-2.18 (m, 1H), 2.04-1.92 (m, 2H), 1.88-1.68 (m, 2H), 1.33 (s, 3H), 1.27 (s, 9H), 1.19 (d, J=6.0 Hz, 3H); 19F NMR (376 MHz, CDCl3) δ −137.17-−137.33 (d, J=23 Hz, 1F), −147.78-−147.92 (d, J=23 Hz, 1F); LCMS (ESI, M+1): 702.25.

Provenance & Evidence