4,5-Dihydrofuran-3-boronic acid pinacol ester → 3-(4,5-dihydrofuran-3-yl)-5-(pyridin-3-yl)-1H-pyrazolo[3,4-c]pyridine

Participants

Reaction Steps

Following the procedures Example 281, 3-iodo-5-(pyridin-3-yl)-1H-pyrazolo[3,4-c]pyridine from Example 4 and 2-(4,5-dihydrofuran-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane were reacted to give 284 as a white solid (0.1 g, 40%). 1H NMR (400 MHz, DMSO): δ 9.42 (s, 1H), 9.09 (s, 1H), 8.56-8.57 (m, 2H), 8.51 (s, 1H), 7.86 (s, 1H), 7.47-7.49 (m, 1H), 4.46-4.50 (m, 2H), 3.12-3.14 (m, 2H). ESI MS m/z=265 (M+1)

Provenance & Evidence