label: succinate semialdehyde + methylamine + formate + CO2 => (E)-2-((N-methylformamido) methylene)succinate + 2 H2O + H(+)
label_lc: succinate semialdehyde + methylamine + formate + co2 => (e)-2-((n-methylformamido) methylene)succinate + 2 h2o + h(+)