((3-Cyclopropylidenebut-1-en-2-yl)oxy)triethylsilane 、
europium;(Z)-1,1,1,2,2,3,3-heptafluoro-6-hydroxy-7,7-dimethyloct-5-en-4-one 、
3-硝基吡啶-4-甲醛 以
氯仿 为溶剂,
以to yield (+/−)-(R)-4-(8-methyl-7-((triethylsilyl)oxy)-4-oxaspiro[2.5]oct-7-en-5-yl)-3-nitropyridine in 63% yield的产率得到(+/-)-(R)-4-(8-methyl-7-((triethylsilyl)oxy)-4-oxaspiro[2.5]oct-7-en-5-yl)-3-nitropyridine