Dichloromethane → 1,1-Dimethylethyl (2-{[3'-(aminocarbonyl)-2-methyl-4-biphenylyl]oxy}ethyl)carbamate

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

A mixture of 1,1-dimethylethyl {2-[(4-bromo-3-methylphenyl)oxy]ethyl}carbamate (0.102 g, 0.31 mmol; Example V-15), 3-(aminocarbonyl)phenylboronic acid (0.056 g; 0.34 mmol), PdCl2(dppf).CH2Cl2 (0.0075 g; 0.01 mmol), DME (2 mL) and 2M Na2CO3 (2 mL) was degassed by sparging with N2,(5-10 min) then stirred at 80° C. for 5.5 h. Upon cooling, the mixture was diluted with EtOAc washed (water, brine), dried over Na2SO4 and concentrated in vacuo. The residue was purified by flash chromatography (EtOAc/hexanes), affording the title compound as a colorless foam. LC/MS (method A) 2.59 min, m/z 371 (M+1, 2%), 392 (M+Na, 53%), 271 ([M−Boc]+H, 100%).

Herkunft & Nachweise