1: 2-methylthio-5-methoxy-1H-benzimidazole With 1,4-diaza-bicyclo[2.2.2]octane; sec.-butyllithium in tetrahydrofuran; cyclohexane T=-60 - -50°C; 1 h; 2: 2-benzenesulfonyl-4-methoxy-3,5-dimethylpyridine T=-50°C; 0.5 h;