反应详情

(R)-5-Bromo-6-(3-hydroxypyrrolidin-1-yl)-N-(4-(trifluoromethoxy)phenyl)nicotinamide (Stage 35.1, 60 mg, 0.134 mmol), 2-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine (44.4 mg, 0.202 mmol), Pd(PPh3)2Cl2 (9.44 mg, 0.013 mmol) and Na2CO3 (42.8 mg, 0.403 mmol) were added to a MW vial and treated with DME (570 μL), EtOH (81 μL) and water (163 μL). The vial was sealed, evacuated/purged with argon, and subjected to MW irradiation at 80° C. with stirring for 2 h, diluted with THF (1 mL), treated with Si-Thiol (Silicycle, 1.27 mmol/g, 52.9 mg, 0.067 mmol), filtered and the filtrate was evaporated off under reduced pressure to give a residue which was purified by preparative HPLC (Condition 12, 20% for 0.2 min then 20% to 50% in 12 min) to yield the title compound as a white solid. UPLC-MS (condition 1) tR=1.82 min, m/z=458.2 [M+H]+, m/z=443.2 [M−H]−; 1H-NMR (400 MHz, DMSO-d6) δ ppm 1.69-1.80 (m, 1H) 1.79-1.92 (m, 1H) 2.69 (s, 3H) 2.91 (d, J=11.00 Hz, 1H) 3.14-3.49 (m, 3H) 4.13-4.28 (m, 1H) 4.83 (br. s, 1H) 7.34 (d, J=8.56 Hz, 2H) 7.80-7.91 (m, 2H) 8.05 (d, J=2.45 Hz, 1H) 8.75 (s, 2H) 8.78 (d, J=2.20 Hz, 1H) 10.14 (s, 1H).

1. customThe vial was sealed
2. customevacuated/purged with argon
3. customsubjected to MW irradiation at 80° C.
4. additiondiluted with THF (1 mL)
5. filtrationfiltered
6. customthe filtrate was evaporated off under reduced pressure
7. customto give a residue which
8. customwas purified by preparative HPLC (Condition 12, 20% for 0.2 min