H-Phe-Thr-OAll   、                                                                                      
N4-<2-Acetamido-4-O-(2-acetamido-3,4,6-tri-O-acetyl-2-desoxy-β-D-glucopyranosyl)-3,6-di-O-acetyl-2-desoxy-β-D-glucopyranosyl>-N2-(tert-butyloxycarbonyl)-L-asparagin                                                                                                                                                              在
                                                                                                                                                                                 
2-乙氧基-1-乙氧碳酰基-1,2-二氢喹啉                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以81%的产率得到N4-<2-Acetamido-4-O-(2-acetamido-3,4,6-tri-O-acetyl-2-desoxy-β-D-glucopyranosyl)-3,6-di-O-acetyl-2-desoxy-β-D-glucopyranosyl>-N2-(tert-butyloxycarbonyl)-L-asparaginyl-L-phenylalanyl-L-threonin-allylester