12,12-Bis-[(5-[2-allyloxycarbonylamino-1-(allyloxycarbonylamino-methyl)-ethoxy]-1-{4-[2-allyloxycarbonylamino-1-(allyloxycarbonylamino-methyl)-ethoxy]-but-2-ynyl}-pent-3-ynyloxycarbonylmethyl)-carbamoyl]-dodecanoic acid 2,2,2-trichloro-ethyl ester 在
ammonium acetate 、
锌 作用下,
以
四氢呋喃 为溶剂,
以61%的产率得到12,12-Bis-[(5-[2-allyloxycarbonylamino-1-(allyloxycarbonylamino-methyl)-ethoxy]-1-{4-[2-allyloxycarbonylamino-1-(allyloxycarbonylamino-methyl)-ethoxy]-but-2-ynyl}-pent-3-ynyloxycarbonylmethyl)-carbamoyl]-dodecanoic acid