1: ethylquinaldinium iodide; N,N'-bis(4-methoxy-phenyl)formamidine With orthoformic acid triethyl ester in ethanol Heating; 2: With sulfonyl chloride resin; N-ethyl-N,N-diisopropylamine in dichloromethane T=20°C; 3: 3-ethyl-1,2,2,-trimethyl-benz[e]-1[H]indolium iodide With sodium hydride in dichloromethane Further stages.;