(2S,4R)-4-((7-chloro-4-methoxyisoquinolin-1-yl)oxy)-N-((1R,2S)-1-((cyclopropylsulfonyl)carbamoyl)-2-vinylcyclopropyl)pyrrolidine-2-carboxamide hydrochloride 、
2-[(1-Phenyltetrazol-5-yl)amino]propanoic acid 在
O-(7-azabenzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
四氢呋喃 为溶剂,
生成 (2'S,3R,7R,8aS)-7-(7-chloro-4-methoxyisoquinolin-1-yl)oxy-2'-ethenylspiro[6,7,8,8a-tetrahydro-2H-pyrrolo[1,2-a]pyrazine-3,1'-cyclopropane]-1,4-dione 、
、