preferred_name: 2'-deoxyuridine + NH4(+) => 2'-deoxycytidine + H2O + H(+)
preferred_name_lc: 2'-deoxyuridine + nh4(+) => 2'-deoxycytidine + h2o + h(+)
label: 2'-deoxyuridine + NH4(+) => 2'-deoxycytidine + H2O + H(+)
label_lc: 2'-deoxyuridine + nh4(+) => 2'-deoxycytidine + h2o + h(+)