2-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenyl → HCID 136352857, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of 2-(4-fluorophenyl)-N-methyl-6-(N-methylmethylsulfonamido)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzofuran-3-carboxamide (90 mg, 0.18 mmol), 2-(3-fluorophenyl)pyrido[2,3-d]pyrimidin-4(3H)-one (63 mg, 0.19 mmol) and K3PO4.3H2O (143 mg, 0.54 mmol) in 1,4-dioxane/H2O (3 mL/0.3 mL), Pd2(dba)3 and X-Phos (10 mg/10 mg) were added under N2 protection. After being stirred at 80° C. for 5 h, the reaction mixture was concentrated in vacuo, suspended in water and extracted with EtOAc. The organic layer was washed with brine, dried over Na2SO4 and concentrated. The residue was purified by prep-HPLC give the product of 2-(4-fluorophenyl)-5-(2-(3-fluorophenyl)-4-oxo-3,4-dihydropyrido[2,3-d]pyrimidin-6-yl)-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide (15 mg, yield: 13%). 1H-NMR (DMSO-d6, 400 MHz) δ 12.97 (br s, 1H), 9.03 (d, J=2.4 Hz, 1H), 8.50˜8.60 (m, 2H), 8.16 (s, 1H), 8.12 (d, J=7.6 Hz, 1H), 8.00˜8.09 (m, 3H), 7.79 (s, 1H), 7.65 (dd, J=14.0, 8.0 Hz, 1H), 7.46˜7.52 (m, 1H), 7.43 (t, J=8.8 Hz, 2H), 3.26 (s, 3H), 3.02 (s, 3H), 2.85 (d, J=4.8 Hz, 3H). MS (M+H)+: 616.

Provenance & Evidence