Piperidine-1,4-dicarboxylic acid 4-ethyl ester 1-[(1R,2R)-2-((2R,3R,4R,5S,6S)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-cyclohexyl] ester 在
sodium hydroxide 、
sodium methylate 作用下,
生成 Piperidine-1,4-dicarboxylic acid mono-[(1R,2R)-2-((2R,3R,4R,5R,6S)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-cyclohexyl] ester