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Ethyl 7-bromoacetyl-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-3quinolinecarboxylate → 1-ethyl-6-fluoro-7-[2-(N-acetyl-N-methylaminomethyl)-4-thiazolyl]-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid ethyl ester

HRID 622496
Notes
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Reaction equation

HRID 622496 reaction equation
[CH2:1]([O:3][C:4]([C:6]1[C:15](=[O:16])[C:14]2[C:9](=[CH:10][C:11]([C:18](=O)[CH2:19]Br)=[C:12]([F:17])[CH:13]=2)[N:8]([CH2:22][CH3:23])[CH:7]=1)=[O:5])[CH3:2].[C:24]([N:27]([CH2:29][C:30]([NH2:32])=[S:31])[CH3:28])(=[O:26])[CH3:25]>C(O)C>[CH2:1]([O:3][C:4]([C:6]1[C:15](=[O:16])[C:14]2[C:9](=[CH:10][C:11]([C:18]3[N:32]=[C:30]([CH2:29][N:27]([C:24](=[O:26])[CH3:25])[CH3:28])[S:31][CH:19]=3)=[C:12]([F:17])[CH:13]=2)[N:8]([CH2:22][CH3:23])[CH:7]=1)=[O:5])[CH3:2]
ParticipantsProcedureSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 13853634Ethyl 7-bromoacetyl-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-3quinolinecarboxylateHCID 14023631N-(2-amino-2-thioxoethyl)-N-methylacetamide

Product 1

HCID 137727661-ethyl-6-fluoro-7-[2-(N-acetyl-N-methylaminomethyl)-4-thiazolyl]-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid ethyl ester

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

According to example 30, reacting 7-bromoacetyl-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-3-quinoline carboxylic acid ethyl ester with 2-(N-acetyl-N-methylamino)thioacetamide in ethanol gave 1-ethyl-6-fluoro-7-[2-(N-acetyl-N-methylaminomethyl)-4-thiazolyl]-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid ethyl ester, mp 173°-175° C. which was then hydrolyzed in refluxing 6N hydrochloric acid to give the title compound, mp 230°-234° C. (dec).

Sources & evidence

ORD record
ord-00b853c49e204061a0dd8416f565cbe0
Source dataset
uspto-grants-1988_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US04771054

Reaction notes

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On this pageParticipantsProcedureSources & evidenceReaction notes