(R)-4-((4S,6R)-6-{3-[(2R,4S,5R)-4-(tert-Butyl-dimethyl-silanyloxy)-5-methyl-tetrahydro-furan-2-yl]-propyl}-2,2,5,5-tetramethyl-[1,3]dioxan-4-yl)-1-imidazol-1-yl-2-methyl-butan-1-one 、
methyl O-(2-methoxy-2-propyl)glycolate 在
lithium diisopropyl amide 作用下,
以
四氢呋喃 为溶剂,
反应 0.2h,
生成 (R)-6-((4S,6R)-6-{3-[(2R,4S,5R)-4-(tert-Butyl-dimethyl-silanyloxy)-5-methyl-tetrahydro-furan-2-yl]-propyl}-2,2,5,5-tetramethyl-[1,3]dioxan-4-yl)-2-(1-methoxy-1-methyl-ethoxy)-4-methyl-3-oxo-hexanoic acid methyl ester