Scheme 1
From: Mapping axillary microbiota responsible for body odours using a culture-independent approach
Chemical structures of the most important odourless water soluble precursors secreted by apocrine glands and odorant compounds obtained by microbial activity. Precursor 1, N-α-3-hydroxy-3-methylhexanoyl-(L)-glutamine; precursor 2, N-α-3-methylhexenoyl-(L)-glutamine; precursor 3, S-[1-(2-hydroxyethyl)-1-methylbutyl]-(L)-cysteinylglycine; precursor 4, S-[1-(2-hydroxyethyl)-butyl]-(L)-cysteinylglycine.