(4R,4aR)-4-((E)-3,3-dimethyl-but-1-enyl)-7-methoxy-2,2-dimethyl-tetrahydro-furo[3,2-d]-[1,3]-dioxin-6-one 、
(3S,6R)-3-amino-6-(tert-butyl-dimethyl-silanyloxy)-1-pyridin-3-ylmethyl-azepan-2-one 在
N,N-二异丙基乙胺 作用下,
以
异丙醇 为溶剂,
反应 16.0h,
以57%的产率得到(R)-N-[(3S,6R)-6-(tert-butyl-dimethyl-silanyloxy)-2-oxo-1-pyridin-3-ylmethyl-azepan-3-yl]-2-[(4R,5R,6R)-6-((E)-3,3-dimethyl-but-1-enyl)-5-hydroxy-2,2-dimethyl-[1,3]dioxan-4-yl]-2-methoxy-acetamide