反应详情

A mixture of tert-butyl N-[5-bromo-3-(5-phenyl-1,3,4-oxadiazol-2-yl)-2-pyridyl]-N-tert-butoxycarbonyl-carbamate (250 mg, 0.4832 mmol), (4-methylsulfonylphenyl)boronic acid (116.0 mg, 0.5798 mmol), 4-ditert-butylphosphanyl-N,N-dimethyl-aniline; dichloropalladium (3.421 mg, 0.004832 mmol) and K2CO3 (133.6 mg, 0.9664 mmol) in Toluene (2.250 mL) and water (250.0 μL) was heated to 100° C. for 48 hours. The mixture was allowed to cool to ambient temperature and diluted with DCM and water. The organic layer was separated, washed with 1M NaOH solution, dried (Na2SO4), filtered and concentrated in vacuo. The resultant residue was triturated with DCM to give the desired product as a peach solid (70 mg, 37% Yield). 1H NMR (400.0 MHz, DMSO) δ 3.27 (s, 3H), 7.64-7.69 (m, 5H), 8.01 (d, J=8.5 Hz, 2H), 8.07 (d, J=8.6 Hz, 2H), 8.25-8.27 (m, 2H), 8.66 (d, J=2.5 Hz, 1H) and 8.72 (d, J=2.5 Hz, 1H) ppm; MS (ES+) 392.9.

1. customThe organic layer was separated
2. washwashed with 1M NaOH solution
3. dry with materialdried (Na2SO4)
4. filtrationfiltered
5. concentrationconcentrated in vacuo
6. customThe resultant residue was triturated with DCM