BOC-NH-(L-tert-BuGly)-[(4R)-hydroxy-S-proline]-(1R,2S-vinyl acca)-CONHSO2-cyclopropane 、
4-氯-7-三氟甲基喹啉 在
lanthanum(III) chloride 作用下,
以
四氢呋喃 、 DMF (N,N-dimethyl-formamide) 为溶剂,
以50%的产率得到BOC-NH-(L-tert-BuGly)-[(4R)-(7-trifluoromethylquinolin-4-oxo)-S-proline]-(1R,2S-vinyl acca)-CONHSO2-cyclopropane