1: (S)-N-butyryl-4-benzyloxazolidin-2-one With sodium hexamethyldisilazane in tetrahydrofuran T=-78°C; 1 h; 2: trideuteriomethyl iodide in tetrahydrofuran 3 h;

1.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 °C / |Inert atmosphere 1.2: 2 h / -78 °C / |Inert atmosphere 2.1: lithium borohydride / methanol; diethyl ether / 2 h / -20 - 0 °C / |Inert atmosphere View Scheme