Methyl 2-(18-amino-2,5,8,11-tetraoxa-14-azabicyclo[13.4.0]nonadeca-1(15),16,18-trien-14-yl)acetate   、                                                                                      
(6'-Acetyloxy-5-carbonochloridoyl-2',7'-difluoro-3-oxospiro[2-benzofuran-1,9'-xanthene]-3'-yl) acetate                                                                                                                                                              在
                                                                                                                                                                                 
N,N-二异丙基乙胺                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                以63%的产率得到Methyl 2-[18-[(3',6'-diacetyloxy-2',7'-difluoro-3-oxospiro[2-benzofuran-1,9'-xanthene]-5-carbonyl)amino]-2,5,8,11-tetraoxa-14-azabicyclo[13.4.0]nonadeca-1(15),16,18-trien-14-yl]acetate