乙酸酐 、
1-(4-hydroxyphenyl)-3-hydroxymethyl-4-keto-1,2,3,4-tetrahydro-6,7-methylenedioxy-2-naphthoic acid lactone 在
吡啶 作用下,
生成 Acetic acid 4-((5S,5aR,8aS)-6,9-dioxo-5,5a,6,8,8a,9-hexahydro-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-5-yl)-phenyl ester 、 Acetic acid 4-((5S,5aS,8aS)-6,9-dioxo-5,5a,6,8,8a,9-hexahydro-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-5-yl)-phenyl ester