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