preferred_name: (2S)-2-isopropylmalate => 2-isopropylmaleate + H2O
preferred_name_lc: (2s)-2-isopropylmalate => 2-isopropylmaleate + h2o
label: (2S)-2-isopropylmalate => 2-isopropylmaleate + H2O
label_lc: (2s)-2-isopropylmalate => 2-isopropylmaleate + h2o