(rac)-4-[1-(tert-butyldimethylsilanyloxy)ethyl]-2,6-dichlorophenol 、 (1S,5R)-6-[cyclopropyl-(2,3-dichlorobenzyl)carbamoyl]-7-[4-((3R)-3-hydroxypyrrolidin-1-yl)phenyl]-3,9-diazabicyclo[3.3.1]non-6-ene-3,9-dicarboxylic acid di-tert-butyl ester 、 (1R,5S)-6-[cyclopropyl-(2,3-dichlorobenzyl)carbamoyl]-7-[4-((3R)-3-hydroxypyrrolidin-1-yl)phenyl]-3,9-diazabicyclo[3.3.1]non-6-ene-3,9-dicarboxylic acid di-tert-butyl ester 在
三丁基膦 、
1,1'-azodicarbonyl-dipiperidine 作用下,
以
甲苯 为溶剂,
反应 2.0h,
生成 (1S,5R)-7-[4-((3S)-3-{4-[(1S)-1-(tert-butyldimethylsilanyloxy)ethyl]-2,6-dichlorophenoxy}pyrrolidin-1-yl)phenyl]-6-[cyclopropyl-(2,3-dichlorobenzyl)-carbamoyl]-3,9-diazabicyclo[3.3.1]non-6-ene-3,9-dicarboxylic acid di-tert-butyl ester 、 (1S,5R)-7-[4-((3S)-3-{4-[(1R)-1-(tert-butyldimethylsilanyloxy)ethyl]-2,6-dichlorophenoxy}pyrrolidin-1-yl)phenyl]-6-[cyclopropyl-(2,3-dichlorobenzyl)-carbamoyl]-3,9-diazabicyclo[3.3.1]non-6-ene-3,9-dicarboxylic acid di-tert-butyl ester 、 (1R,5S)-7-[4-((3S)-3-{4-[(1S)-1-(tert-butyldimethylsilanyloxy)ethyl]-2,6-dichlorophenoxy}pyrrolidin-1-yl)phenyl]-6-[cyclopropyl-(2,3-dichlorobenzyl)-carbamoyl]-3,9-diazabicyclo[3.3.1]non-6-ene-3,9-dicarboxylic acid di-tert-butyl ester 、 (1R,5S)-7-[4-((3S)-3-{4-[(1R)-1-(tert-butyldimethylsilanyloxy)ethyl]-2,6-dichlorophenoxy}pyrrolidin-1-yl)phenyl]-6-[cyclopropyl-(2,3-dichlorobenzyl)-carbamoyl]-3,9-diazabicyclo[3.3.1]non-6-ene-3,9-dicarboxylic acid di-tert-butyl ester