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