preferred_name: ergothioneine + A + H2O => 2-sulfenohercynine + AH2 + H(+)
preferred_name_lc: ergothioneine + a + h2o => 2-sulfenohercynine + ah2 + h(+)
label: ergothioneine + A + H2O => 2-sulfenohercynine + AH2 + H(+)
label_lc: ergothioneine + a + h2o => 2-sulfenohercynine + ah2 + h(+)