preferred_name: N-[(5S)-5-amino-5-carboxypentanoyl]-L-cysteinyl-D-valine + O2 = isopenicillin N + 2 H2O
preferred_name_lc: n-[(5s)-5-amino-5-carboxypentanoyl]-l-cysteinyl-d-valine + o2 = isopenicillin n + 2 h2o
label: N-[(5S)-5-amino-5-carboxypentanoyl]-L-cysteinyl-D-valine + O2 = isopenicillin N + 2 H2O
label_lc: n-[(5s)-5-amino-5-carboxypentanoyl]-l-cysteinyl-d-valine + o2 = isopenicillin n + 2 h2o