preferred_name: an N-acyl-L-phenylalanine + H2O <=> L-phenylalanine + a fatty acid
preferred_name_lc: an n-acyl-l-phenylalanine + h2o <=> l-phenylalanine + a fatty acid
label: an N-acyl-L-phenylalanine + H2O <=> L-phenylalanine + a fatty acid
label_lc: an n-acyl-l-phenylalanine + h2o <=> l-phenylalanine + a fatty acid