[4,7-Bis-tert-butoxycarbonylmethyl-10-({2-[3-((2S,3R,4S,5S,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-ylsulfanyl)-propionylamino]-ethylcarbamoyl}-methyl)-1,4,7,10-tetraaza-cyclododec-1-yl]-acetic acid tert-butyl ester                                                                                                                                                              在
                                                                                                                                                                                 
potassium methanolate   、                                                                                                  
三氟乙酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇   、                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 [4,7-Bis-carboxymethyl-10-({2-[3-((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-ylsulfanyl)-propionylamino]-ethylcarbamoyl}-methyl)-1,4,7,10-tetraaza-cyclododec-1-yl]-acetic acid