4-nitrophenyl (2'S,3aS,5R,6aR)-5'-methoxyoctahydro-3'H-spiro[cyclopenta[b]furan-3,2'-furan]-5-yl carbonate 、
N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutyl-4-methoxybenzenesulfonamide 在
N,N-二异丙基乙胺 作用下,
以
四氢呋喃 、
乙腈 为溶剂,
生成 (2'S,3aS,5R,5'S,6aR)-5'-methoxyoctahydro-3'H-spiro[cyclopenta[b]furan-3,2'-furan]-5-yl (2S,3R)-3-hydroxy-4-(N-isobutyl-4-methoxyphenylsulfonamido)-1-phenylbutan-2-ylcarbamate 、 (2'S,3aS,5R,5'R,6aR)-5'-methoxyoctahydro-3'H-spiro[cyclopenta[b]furan-3,2'-furan]-5-yl (2S,3R)-3-hydroxy-4-(N-isobutyl-4-methoxyphenylsulfonamido)-1-phenylbutan-2-ylcarbamate