3-methyl-N-[(pent-4-en-1-yloxy)carbonyl]-L-valine 、
ethyl (4R)-4-[(7-bromoisoquinolin-1-yl)oxy]-L-prolinate hydrochloride 在
O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 18.0h,
以80%的产率得到ethyl 3-methyl-N-[(pent-4-en-1-yloxy)carbonyl]-L-valyl-(4R)-4-[(7-bromoisoquinolin-1-yl)oxy]-L-prolinate