5-[4-({4,11-bis(tert-butoxycarbonyl)-8-[4-((1,9-dithia-5,13-diazacyclohexadecan-5-yl)methyl)benzoyl]-1,4,8,11-tetraazacyclotetradecan-1-yl}carbonyl)benzyl]-1,9-dithia-5,13-diazacyclohexadecane 、 1,8-bis(tert-butoxycarbonyl)-4,11-bis[4-(chloromethyl)benzoyl]-1,4,8,11-tetraazacyclotetradecane 在
sodium carbonate 作用下,
以
二氯甲烷 、
乙腈 为溶剂,
反应 170.0h,
以10%的产率得到Tetratert-butyl 7,16,36,45-tetraoxo-26,55,62,79-tetrathia-1,8,11,15,22,30,37,40,44,51,70,87-dodecazanonacyclo[49.7.7.722,30.68,15.637,44.23,6.217,20.232,35.246,49]dononaconta-3(92),4,6(91),17(84),18,20(83),32,34,46,48,66,74-dodecaene-11,40,70,87-tetracarboxylate