4-乙酰氧基氮杂环丁酮

(R)-4-(tert-Butyl-dimethyl-silanyloxy)-2-oxo-pentanoic acid methyl ester

(2S,3R,E)-3-((2-methoxyethoxy)methoxy)-6-oxo-6-(2,2,2-trichloroethoxy)hex-4-en-2-yl (4R,5S,E)-4-(((R)-3-((tert-butyldimethylsilyl)oxy)butanoyl)oxy)-5-((2-methoxyethoxy)methoxy)hex-2-enoate