(2R)-2-[1-(4,4-dimethyl-2,6-dioxocyclohexylidene)ethylamino]-3-tritylsulfanylpropanoic acid 、 (R)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-tritylsulfanyl-propionic acid 2-trimethylsilanyl-ethyl ester 在
碘苯二乙酸 作用下,
生成 (2R)-2-[1-(4,4-dimethyl-2,6-dioxocyclohexylidene)ethylamino]-3-[[(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-oxo-3-(2-trimethylsilylethoxy)propyl]disulfanyl]propanoic acid