Boc-Glu(OBzl)-Glu(OBzl)-Ala-Tyr-Gly-NHNH-Troc                                                                                                                                                              在
                                                                                                                                                                                 TFA-anisole                                                                                                                                  作用下,
                                                                                                                                                                                        反应 0.5h,
                                                                                                                生成                                                 (S)-4-((S)-2-Amino-4-benzyloxycarbonyl-butyrylamino)-4-[(S)-1-((S)-2-(4-hydroxy-phenyl)-1-{2-oxo-2-[N'-(2,2,2-trichloro-ethoxycarbonyl)-hydrazino]-ethylcarbamoyl}-ethylcarbamoyl)-ethylcarbamoyl]-butyric acid benzyl ester; compound with trifluoro-acetic acid