2-[(E)-6-(2-{Benzyloxy-[5-(tetrahydro-pyran-2-yloxymethyl)-furan-2-yl]-methyl}-[1,3]dithian-2-yl)-4-methyl-hex-3-enyl]-malonic acid dimethyl ester 在
对甲苯磺酸 作用下,
以
甲醇 为溶剂,
以93%的产率得到2-((E)-6-{2-[Benzyloxy-(5-hydroxymethyl-furan-2-yl)-methyl]-[1,3]dithian-2-yl}-4-methyl-hex-3-enyl)-malonic acid dimethyl ester