碘乙烷 、
1,3,3-trimethyl-5-<(4-methylthiophenyl)methylene>-2-oxabicyclo<2.2.2>octan-6-one O-(2-dimethylaminoethyl)oxime 反应 0.5h,
以97%的产率得到Ethyl-dimethyl-{2-[1,3,3-trimethyl-5-[1-(4-methylsulfanyl-phenyl)-meth-(Z)-ylidene]-2-oxa-bicyclo[2.2.2]oct-(6Z)-ylideneaminooxy]-ethyl}-ammonium; iodide