tert-butyl 2-cyano-3-[(4S,5R)-5-[(1S,2R)-2-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-1,2-bis(methoxymethoxy)ethyl]-2,2-dimethyl-1,3-dioxolan-4-yl]-2-(1-ethoxyethoxy)propanoate 在
ammonium hydroxide 、
三氟乙酸 作用下,
生成 (2S,4R,5R,6S)-2,4,5-Trihydroxy-6-((1R,2R)-1,2,3-trihydroxy-propyl)-tetrahydro-pyran-2-carboxylic acid; compound with ammonia