英文别名Isavuconazole Impurity 3; 2H-Pyrido[2,3-d][1,3]oxazin-2-one, 1,4-dihydro-1-methyl-; Esaconazole impurity 31; Essaconazole impurity 18; sulfuricIsavuconazole Impurity; 1-methyl-1H-pyrido[2,3-d][1,3]oxazin-2(4H)-one; 1-methyl-4H-pyrido[2,3-d][1,3]oxazin-2-one 
