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