126128-42-56-(2-Deoxy-beta-D-erythro-pentofuranosyl)-4,6-dihydro-1H-pyrimido(4,5-c)(1,2)oxazin-7(3H)-one6-[(2S,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-3,4-dihydro-1H-pyrimido[4,5-c]oxazin-7-one6-(2-Deoxy-beta-D-erythro-pentofuranosyl)-4,6-dihydro-1H-pyrimido[4,5-c][1,2]oxazin-7(3H)-one6-(beta-D-2-deoxyribofuranosyl)-3,4-dihydro-8H-pyrimido-[4,5-c][1,2]oxazin-7-one6-((2S,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-3,4-dihydro-1H-pyrimido[4,5-c][1,2]oxazin-7(6H)-oneSCHEMBL8098652DTXSID00925421degenerate pyrimidine, protein mutagenND145587F902596-(?-D-2-Deoxyribofuranosyl)-3,4-dihydro-8H-pyrimido[4,5-c][1,2]oxazin-7-one