ethyl (2S,3S)-2-amino-3-methylpentanoate;ethyl (2S,3S)-2-amino-3-methyl-pentanoate;(2S,3S)-2-amino-3-methylpentanoic acid ethyl ester;(2S,3S)-2-amino-3-methyl-valeric acid ethyl ester
ethyl (2S,3S)-2-amino-3-methylpentanoate