The invention relates to (1S)-1-isobutoxymethyl-3-methylbutylamine useful as an intermediate in the synthesis of sodium (2S,3S)-3-ÄÄ(1S)-1-isobutoxymethyl-3-methylbutylÜcarbamoylÜoxirane-2-carboxylate and a process for production thereof. The process comprises reacting L-leucinol with a compound represented by the following formula in the presence of a base and reducing the obtained (1S)-1-(2-methyl-2-propenoxymethyl)-3-methylbutylamine: <CHEM> Äin which X is a leaving groupÜ.
