N,N'-diethyl-1-[5-[2-[4-[N-ethyl-N-(6-hydroxyhexyl)amino]phenyl]ethenyl]-2-thienylmethylidene]-2,4,6-(1H,3H,5H)pyrimidinetrione 、
叔丁基二甲基氯硅烷 在
咪唑 作用下,
以97%的产率得到N,N'-diethyl-1-[5-[2-[4-[N-ethyl-N-[6-(tert-butyldimethylsilyloxy)hexyl]amino]phenyl]ethenyl]-2-thienylmethyliden]-2,4,6-(1H,3H,5H)pyrimidinetrione