2,6-Dichloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol → (S)-tert-butyl 1-{5-[3-(cyclopropanecarbonyl)-6-(3,5-dichloro-4-hydroxyphenyl)-1,5-naphthyridin-4-ylamino]pyridin-2-yl}piperidin-3-ylcarbamate

Participants

Reaction Steps

Following general procedure II, (S)-tert-butyl 1-{5-[6-chloro-3-(cyclopropanecarbonyl)-1,5-naphthyridin-4-ylamino]pyridin-2-yl}piperidin-3-ylcarbamate (98 mg, 0.19 mmol) was reacted with 2,6-dichloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (87 mg, 0.30 mmol) to afford the desired product (73 mg, 60%) as a red-brown solid: 1H NMR (500 MHz, CDCl3) δ 11.55 (br s, 1H), 9.29 (s, 1H), 8.25 (d, J=8.8 Hz, 1H), 8.03 (d, J=2.7 Hz, 1H), 7.92 (d, J=8.8 Hz, 1H), 7.46 (s, 2H), 7.32 (dd, J=9.0, 2.8 Hz, 1H), 6.67 (d, J=9.0 Hz, 1H), 4.78-4.72 (m, 1H), 3.87-3.69 (m, 3H), 3.29-3.07 (m, 2H), 2.79-2.71 (m, 1H), 1.98-1.69 (m, 2H), 1.45 (s, 9H), 1.31-1.22 (m, 2H), 1.16-1.06 (m, 2H); ESI MS m/z 649 [M+H]+

Provenance & Evidence