3-氨甲基吡啶 、
1-[2-((4R,6R)-6-tert-butoxycarbonylmethyl-2,2-dimethyl[1,3]dioxan-4-yl)-ethyl]-2-(4-fluoro-phenyl)-5-isopropyl-1H-imidazole-4-carboxylic acid 在
N,N-二异丙基乙胺 、 bromo-tris(1-pyrrolidinyl)phosphonium hexafluorophosphate 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以30%的产率得到[(4R,6R)-6-(2-[2-(4-fluoro-phenyl)-5-isopropyl-4-[(pyridin-3-ylmethyl)-carbamoyl-imidazol-1-yl]-ethyl]-2,2-dimethyl-[1,3]dioxan-4-yl)]-acetic acid tert-butyl ester