2-((E)-6-{2-[Benzoyloxy-(5-hydroxymethyl-3-methoxycarbonyl-furan-2-yl)-methyl]-[1,3]dithian-2-yl}-4-methyl-hex-3-enyl)-malonic acid dimethyl ester 在
六氯丙酮 、
三苯基膦 作用下,
以
二氯甲烷 为溶剂,
以93%的产率得到2-((E)-6-{2-[Benzoyloxy-(5-chloromethyl-3-methoxycarbonyl-furan-2-yl)-methyl]-[1,3]dithian-2-yl}-4-methyl-hex-3-enyl)-malonic acid dimethyl ester