preferred_name: a 2-oxocarboxylate + AH2 => a (2R)-2-hydroxycarboxylate + A
preferred_name_lc: a 2-oxocarboxylate + ah2 => a (2r)-2-hydroxycarboxylate + a
label: a 2-oxocarboxylate + AH2 => a (2R)-2-hydroxycarboxylate + A
label_lc: a 2-oxocarboxylate + ah2 => a (2r)-2-hydroxycarboxylate + a