Cyclopropanecarboxylic acid 3-(2,6-dimethyl-phenyl)-1-methoxymethoxy-2,8-dioxo-1-aza-spiro[4.5]dec-3-en-4-yl ester 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
反应 0.5h,
以99%的产率得到3-(2,6-dimethylphenyl)-8-hydroxy-1-methoxymethoxy-2-oxo-1-azaspiro[4.5]dec-3-en-1-yl cyclopropanecarboxylate