preferred_name: 6-amino-2-oxohexanoate = Delta(1)-piperideine-2-carboxylate + H2O
preferred_name_lc: 6-amino-2-oxohexanoate = delta(1)-piperideine-2-carboxylate + h2o
label: 6-amino-2-oxohexanoate = Delta(1)-piperideine-2-carboxylate + H2O
label_lc: 6-amino-2-oxohexanoate = delta(1)-piperideine-2-carboxylate + h2o