preferred_name: 1-pyrroline + propane-1,3-diamine + AH2 => spermidine + A
preferred_name_lc: 1-pyrroline + propane-1,3-diamine + ah2 => spermidine + a
label: 1-pyrroline + propane-1,3-diamine + AH2 => spermidine + A
label_lc: 1-pyrroline + propane-1,3-diamine + ah2 => spermidine + a