2-硝基苯硫氯 、 4-Nitro-benzoic acid (1S,4S,8R)-4-acetyl-8-dimethoxymethyl-9,10-dimethylene-11-oxa-tricyclo[6.2.1.0
2,7]undec-2(7)-en-4-yl ester 以
乙腈 为溶剂,
反应 5.0h,
以12%的产率得到(1RS,4SR,8SR,9RS or 9SR)-4-acetyl-9-(chloromethyl)-8-(dimethoxymethyl)-10-methylidene-9-(2-nitrophenylthio)-11-oxatricyclo<6.2.1.0
2,7>undec-2(7)-en-4-yl 4-nitrobenzoate