preferred_name: chenodeoxycholate + FADH2 => lithocholate + FAD + H2O + H(+)
preferred_name_lc: chenodeoxycholate + fadh2 => lithocholate + fad + h2o + h(+)
label: chenodeoxycholate + FADH2 => lithocholate + FAD + H2O + H(+)
label_lc: chenodeoxycholate + fadh2 => lithocholate + fad + h2o + h(+)