(5S,8R,11R)-11-((tert-butoxycarbonyl)amino)-8-(3,5-dichloro-4-hydroxyphenyl)-16-hydroxy-15-iodo-6-methyl-7,10-dioxo-2-oxa-6,9-diaza-1(1,3),3(1,4)-dibenzenacycloundecaphane-5-carboxylic acid    、                                                                                      
D-对羟基苯甘氨酸甲酯盐酸盐                                                                                                                                                              在
                                                                                                                                                                                 
N-羟基-7-氮杂苯并三氮唑   、                                                                                                  
碳酸氢钠   、                                                                                                  
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                                                        以59%的产率得到methyl (R)-2-((5S,8R,11R)-11-((tert-butoxycarbonyl)amino)-8-(3,5-dichloro-4-hydroxyphenyl)-16-hydroxy-15-iodo-6-methyl-7,10-dioxo-2-oxa-6,9-diaza-1(1,3),3(1,4)-dibenzenacycloundecaphane-5-carboxamido)-2-(4-hydroxyphenyl)acetate