1: 2-((phenylsulfonyl)methyl)quinoline With sulfur; potassium tert-butylate in tetrahydrofuran T=20°C; 6 h; 2: methyl iodide in tetrahydrofuran T=20°C; 1 h;

sulfur; triethylamine 1.) DMSO, 25 deg C, 3 h; Yield given. Multistep reaction;