在
                                                                                                                                                                                 
三氟乙酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以17%的产率得到(8S,11S,14S,17S,29S,32S,35S,38S)-10,31-bis[(2S)-3,3-dimethyl-2-[[(2S)-2-(methylamino)propanoyl]amino]butanoyl]-14,35-bis(naphthalen-2-ylmethyl)-12,15,33,36-tetraoxo-38-(5-oxo-2H-oxadiazol-4-yl)-2,23-dioxa-5,6,7,10,13,16,26,27,28,31,34,37-dodecazaheptacyclo[38.2.2.219,22.14,7.18,11.125,28.129,32]pentaconta-1(43),4(50),5,19,21,25(46),26,40(44),41,47-decaene-17-carboxylic acid