dimethyl (1R,2R,3S,4S)-2-((R)-(((1S,2R,4R)-2-hydroxy-7,7-dimethylbicyclo[2.2.1]heptan-1-yl)methyl)sulfinyl)bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate 在
aluminum tri-bromide 、
二甲基硫 作用下,
以
二氯甲烷 为溶剂,
反应 4.0h,
以100%的产率得到(+)-(1R,R
S)-3-methyl hydrogen 2-exo-(<(1S,2R,4R)-2-hydroxy-7,7-dimethylbicyclo<2.2.1>heptan-1-yl>methylsulphinyl)bicyclo<2.2.1>hept-5-ene-2-endo,3-endo-dicarboxylate