5-[(R)-2-[(3-Aminomethylcyclohexylmethyl)amino]-1-(tert-butyldimethylsilanyloxy)ethyl]-8-benzyloxy-1H-quinolin-2-one 、
3-[4-[(2-phenylphenyl)carbamoyloxy]-1-piperidyl]propanoic acid 在
二异戊胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以36%的产率得到biphenyl-2-ylcarbamic Acid 1-{2-[(3-{[(R)-2-(8-Benzyloxy-2-oxo-1,2-dihydro-quinolin-5-yl)-2-(tert-butyldimethylsilanyloxy)ethylamino]methyl}-cyclohexylmethyl)carbamoyl]ethyl}piperidin-4-yl Ester