3-(1-ethyl-3,3-dimethyl-1,3-dihydro-indol-2-ylidene)-1,1,1-trifluoro-propan-2-one 、
3-ethyl-2-fluoromethyl-benzothiazolium; ethyl sulfate 生成 3-ethyl-2-[3-(1-ethyl-3,3-dimethyl-1,3-dihydro-indol-2-ylidene)-1-fluoro-2-trifluoromethyl-propenyl]-benzothiazolium; perchlorate