Levofloxacin Impurity 9

ethyl (2R)-6,7-difluoro-2-methyl-10-oxo-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraene-11-carboxylate

Also Known As: Levofloxacin Impurity 9|Levofloxacin Impurity K|Levofloxacin Impurity 8|Levofloxacin Impurity 47|KS-00000INK|Ethyl (r)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7h-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylate|J2.015.007F|ethyl (2R)-6,7-difluoro-2-methyl-10-oxo-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraene-11-carboxylate|(S)-Ethyl 9,10-difluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylate|(3R)-3beta-Methyl-7-oxo-9,10-difluoro-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid ethyl ester|(R)-ethyl 9,10-difluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylate|3beta-Methyl-7-oxo-9,10-difluoro-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid ethyl ester|7H-Pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid, 9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-, ethyl ester, (3R)-|7H-Pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid, 9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-, ethyl ester, (R)-|Ethyl (3R)-9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylate|Ethyl (R)-(+)-9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylate|Ethyl(r)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7h-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylate

Molecular Formula	C15H13F2NO4
Molecular Weight	309.08127 g/mol
LogP	2.4098
Topological Polar Surface Area	57.53 Ų
Hydrogen Bond Donors	0
Hydrogen Bond Acceptors	4
Rotatable Bonds	2
Exact Mass	309.08127
Monoisotopic Mass	309.08127
Heavy Atoms	22
Complexity	843.7769

Chemical Identifiers

CAS Number	106939-34-8
SMILES	CCOC(=O)C1=CN2[C@@H](COC3=C2C(=CC(=C3F)F)C1=O)C