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1,8-Diazabicyclo(5.4.0)undec-7-ene → 1-Cyclopropyl-7-[3,7-diazabicyclo[3.3.0]oct-1(5)-en-3-yl]-6,8-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid

HRID 1534816
Notes
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Reaction equation

HRID 1534816 reaction equation
[CH:1]1([N:4]2[C:13]3[C:8](=[CH:9][C:10]([F:16])=[C:11](F)[C:12]=3[F:14])[C:7](=[O:17])[C:6]([C:18]([OH:20])=[O:19])=[CH:5]2)[CH2:3][CH2:2]1.Br.Br.[C:23]12[CH2:30][NH:29][CH2:28][C:27]=1[CH2:26][NH:25][CH2:24]2.N12CCCN=C1CCCCC2>C(#N)C>[CH:1]1([N:4]2[C:13]3[C:8](=[CH:9][C:10]([F:16])=[C:11]([N:25]4[CH2:26][C:27]5[CH2:28][NH:29][CH2:30][C:23]=5[CH2:24]4)[C:12]=3[F:14])[C:7](=[O:17])[C:6]([C:18]([OH:20])=[O:19])=[CH:5]2)[CH2:2][CH2:3]1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 5354141-Cyclopropyl-6,7,8-trifluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acidHCID 232828491,2,3,4,5,6-Hexahydropyrrolo[3,4-c]pyrrole dihydrobromide

Product 1

HCID 98643051-Cyclopropyl-7-[3,7-diazabicyclo[3.3.0]oct-1(5)-en-3-yl]-6,8-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acidYield 67%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
100 °C

Procedure

0.4 g of 1-cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid, 0.8 g of 3,7-diazabicyclo[3.3.0]oct-1(5)-ene dihydrobromide and 0.8 ml of 1,8-diazabicyclo[5.4.0] undec-7-ene (DBU) were suspended in 30 ml of acetonitrile and the suspension was refluxed in 100° C. oil bath for 8 hours. The reaction mixture was kept overnight at room temperature. The produced precipitate was filtered and washed with methanol. 0.35 g of the title compound was obtained (yield 67%)

Workup

  1. filtrationThe produced precipitate was filtered
  2. washwashed with methanol

Sources & evidence

ORD record
ord-5c40eadfc47141a786a7f64aeaae80c9
Source dataset
uspto-grants-1992_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05091384

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes