4-methoxy-2-methylphenyl 4-O-acetyl-3-deoxy-2-methoxy-3-phthalimido-α-D-xylo-hex-5-enopyranoside 在
iodonium di(2,4,6-trimethylpyridine) perchlorate 作用下,
以
乙醇 、
氯仿 为溶剂,
反应 22.0h,
以16%的产率得到Acetic acid (3S,4R,5R,6S)-4-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-ethoxy-2-iodomethyl-5-methoxy-6-(4-methoxy-2-methyl-phenoxy)-tetrahydro-pyran-3-yl ester