7-((1R,2S,3S,4R,5R)-3,4-Dimethoxy-2,5-bis-methoxymethoxy-cyclopentyl)-5-methyl-1-oxa-5-aza-spiro[2.5]oct-6-ene-4,8-dione 在
碳酸氢钠 、
间氯过氧苯甲酸 作用下,
以
二氯甲烷 为溶剂,
生成 5-((1R,2S,3S,4R,5R)-3,4-Dimethoxy-2,5-bis-methoxymethoxy-cyclopentyl)-1-methyl-3-methylene-1H-pyridine-2,4-dione 、 3-Chloro-benzenecarboperoxoic acid 5-((1R,2S,3S,4R,5R)-3,4-dimethoxy-2,5-bis-methoxymethoxy-cyclopentyl)-4-hydroxy-1-methyl-2-oxo-1,2-dihydro-pyridin-3-ylmethyl ester