Benzoic acid (3aS,4R,6S,7R,7aS)-6-(1,3-dioxo-1,3-dihydro-isoindol-2-yloxy)-2,2,4-trimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-7-yl ester 在
盐酸 、
溶剂黄146 作用下,
以
四氢呋喃 为溶剂,
以97%的产率得到Benzoic acid (2S,3R,4S,5R,6R)-2-(1,3-dioxo-1,3-dihydro-isoindol-2-yloxy)-4,5-dihydroxy-6-methyl-tetrahydro-pyran-3-yl ester