1: 1,3-thiazole With lithium diisopropyl amide in tetrahydrofuran T=-78 - -20°C; 1 h; 2: chloro-trimethyl-silane in tetrahydrofuran T=-78°C; 1 h; 3: chloro-trimethyl-silane With lithium diisopropyl amide in tetrahydrofuran T=-78°C; 2 h; Further stages.;

n-butyllithium

n-butyllithium 1.) diethyl ether, -78 deg C, 30 min, 2.) diethyl ether, -78 deg C, 1 h; Yield given. Multistep reaction;

hydrogenchloride in tetrahydrofuran 1 h;