Avibactam Impurity 44

Avibactam Impurity 38

Avibactam Impurity 39

Avibactam Impurity

Avibactam Impurity D

Avibactam Impurity 40

Avibactam Impurity 45

3-(3,4-dicyanophenyl)-1-[5-(2-fluorophenyl)-1-methyl-2-oxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]urea

3-{bicyclo[2.2.1]hept-5-en-2-yl}-1-[5-(2-fluorophenyl)-1-methyl-2-oxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]urea

3-[5-(2-fluorophenyl)-1-methyl-2-oxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]-1-[(1S)-1-phenylpropyl]urea

3-(3-fluoro-4-methoxyphenyl)-1-[5-(2-fluorophenyl)-1-methyl-2-oxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]urea

3-(2,3-dihydro-1-benzofuran-7-yl)-1-[5-(2-fluorophenyl)-1-methyl-2-oxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]urea

3-(2,3-dihydro-1,4-benzodioxin-5-yl)-1-[5-(2-fluorophenyl)-1-methyl-2-oxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]urea

1-[5-(2-fluorophenyl)-1-methyl-2-oxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]-3-[(oxolan-3-yl)methyl]urea

1-[5-(2-fluorophenyl)-1-methyl-2-oxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]-3-[4-(pentafluoro-lambda6-sulfanyl)phenyl]urea

(5'S,7'S)-21'-chloro-7'-fluoro-18'-phenyl-13'-oxa-19'lambda6-thia-3',9',18'-triazaspiro[piperidine-4,11'-tricyclo[18.3.1.0,5,9]tetracosane]-1'(24'),15',20',22'-tetraene-2',10',19',19'-tetrone; trifluoroacetic acid

6-(3,4-Dimethylphenyl)-5-fluoro-3,4-dihydropyrimidin-4-one