2-Chloro-6-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol → 1-(4-(6-(3-Aminopyrrolidin-1-yl)pyridin-3-ylamino)-6-(3-chloro-4-hydroxy-5-methoxyphenyl)quinolin-3-yl)propan-1-one

Participants

Reaction Steps

Following general procedure D, tert-butyl 1-(5-(6-bromo-3-propionylquinolin-4-ylamino) pyridin-2-yl)pyrrolidin-3-ylcarbamate (100 mg, 0.18 mmol) was reacted with 2-chloro-6-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (80 mg, 0.28 mmol) to obtain the protected intermediate which was subjected to general procedure A-2 to afford the desired product (24 mg, 27% over two steps) as a yellow solid: 1H NMR (500 MHz, CD3OD+TFA-d) δ 9.28 (s, 1H), 8.29-8.23 (m, 2H), 8.06-7.98 (m, 2H), 7.78 (dd, J=9.1, 2.7 Hz, 1H), 7.02 (d, J=2.2 Hz, 1H), 6.92 (d, J=9.1 Hz, 1H), 6.70 (d, J=2.2 Hz, 1H), 4.14-4.06 (m, 1H), 4.04-3.96 (m, 1H), 3.91 (s, 3H), 3.87-3.77 (m, 1H), 3.75-3.66 (m, 2H), 3.23 (q, J=7.1 Hz, 2H), 2.62-2.51 (m, 1H), 2.32-2.22 (m, 1H), 1.27 (t, J=7.1 Hz, 3H); ESI MS m/z 518 [C28H28ClN5O3+H]+; HPLC 98.5% (AUC), tR=9.79 min.

Provenance & Evidence