1: 2-bromo-6-methyl-pyridine With lithium diisopropyl amide in tetrahydrofuran T=-78°C; 0.833333 h; 2: N,N-dimethyl-formamide in tetrahydrofuran T=-78°C; 0.5 h; 3: With methanol; sodium tetrahydroborate; acetic acid in tetrahydrofuran T=-78°C;