1: (+/-)-N2-(4-methoxyphenyl)-1,1,1-trifluoro-3-phenylsulfonyl-2-propanamine With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 2 h; 2: chloromethyl iodide in tetrahydrofuran; hexane 0.166667 h; 3: With methyllithium in tetrahydrofuran; hexane Julia methylenation-desulfonylation; 0.25 h;

1: 1-[(4-methylphenyl)sulfinyl]-2-(trimethylsilyl)ethane With lithium diisopropyl amide in tetrahydrofuran T=0°C; 0.25 h; 2: (E)-N-(2,2,2-trifluoroethylidene)-4-methoxyaniline in tetrahydrofuran T=-78 - 20°C; Further stages.;

in tetrahydrofuran; diethyl ether T=0°C; 2 h;

2 h; Heating;