Boc-L-γ-Ach-D-γ-MeN-Acp-D-γ-(Ac)3Aga-D-γ-MeN-Acp-OH 、 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
二氯甲烷 为溶剂,
以70%的产率得到Boc-[L-γ-Ach-D-γ-
MeN-Acp-D-γ-(Ac)
3Aga-D-γ-
MeN-Acp]
2-OAll