1: 2-(piperidin-1-yl)thiazole With n-butyllithium; diisopropylamine in tetrahydrofuran; hexane T=-78 - 0°C; Inert atmosphere; 2: N,N-dimethyl-formamide in tetrahydrofuran; hexane T=-78°C; 0.666667 h; Inert atmosphere;