preferred_name: (2S)-2-acetamido-4-aminobutanoate => L-ectoine + H2O
preferred_name_lc: (2s)-2-acetamido-4-aminobutanoate => l-ectoine + h2o
label: (2S)-2-acetamido-4-aminobutanoate => L-ectoine + H2O
label_lc: (2s)-2-acetamido-4-aminobutanoate => l-ectoine + h2o