Cesium carbonate → 6-(3-Fluoro-5-(2-(pyrrolidin-1-yl)ethylamino)phenyl)pyrido[3,2-d]pyrimidin-4-amine

Participants

Reaction Conditions

Reaction Steps

A suspension of crude 31-B (300 mg, 1.0 mmol), 3-A (150 mg, 0.80 mmol), Pd(PPh3)4 (30 mg) and Cs2CO3 (600 mg, 1.8 mmol) in dioxane/H2O (10 mL/1.0 mL) was stirred at 90° C. for 2 h. The reaction solution was partitioned between EtOAc (100 mL) and brine (35 mL). The combined organic layer was washed with water (3×30 mL), concentrated and purified by prep-HPLC (25 mg, 8.9%). LCMS (0-60AB), RT=0.904 min, M+H 352.9 1H-NMR (Methanol-d4, 400 MHz): δ 8.53 (s, 1H), 8.35 (s, 1H), 8.23 (d, J=8.8 Hz, 1H), 8.03 (d, J=8.8 Hz, 1H)), 7.33 (s, 1H), 7.24 (d, J=10.4 Hz, 1H), 6.49 (d, J=11.2 Hz, 1H), 3.60-3.57 (m, 2H), 3.37-3.28 (m, 6H), 2.07-2.04 (m, 2H).

Provenance & Evidence