preferred_name: 2-acetamidoglucal + selenoneine + A + H2O => hercynyl-SeGlcNAc selenoxide + AH2
preferred_name_lc: 2-acetamidoglucal + selenoneine + a + h2o => hercynyl-seglcnac selenoxide + ah2
label: 2-acetamidoglucal + selenoneine + A + H2O => hercynyl-SeGlcNAc selenoxide + AH2
label_lc: 2-acetamidoglucal + selenoneine + a + h2o => hercynyl-seglcnac selenoxide + ah2