(S)-1-[(4R,6S,7R,8S,10R)-7-(tert-Butyl-dimethyl-silanyloxy)-6,8-dimethoxy-4,10-dimethyl-2,3-dioxo-11-triisopropylsilanyloxy-undecanoyl]-piperidine-2-carboxylic acid tert-butyl ester 在
氢氟酸 作用下,
以
乙腈 为溶剂,
反应 0.5h,
以80%的产率得到(S)-1-{2-[(2R,3R,5S,6R)-2-Hydroxy-6-((1S,3R)-4-hydroxy-1-methoxy-3-methyl-butyl)-5-methoxy-3-methyl-tetrahydro-pyran-2-yl]-2-oxo-acetyl}-piperidine-2-carboxylic acid tert-butyl ester