1,8-Diazabicyclo(5.4.0)undec-7-ene → 1-Cyclopropyl-7-(1,4-diazabicyclo[3.2.1]octan-4-yl)-6,8-difluoro-4-oxo-quinoline-3-carboxylic acid

HRID 1589575Notes

Reaction equation

HRID 1589575 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.[N:21]12[CH2:28][CH:25]([CH2:26][CH2:27]1)[NH:24][CH2:23][CH2:22]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:24]4[CH:25]5[CH2:28][N:21]([CH2:27][CH2:26]5)[CH2:22][CH2:23]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

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 123740771,4-Diazabicyclo[3.2.1]octane

Product 1

HCID 4618911-Cyclopropyl-7-(1,4-diazabicyclo[3.2.1]octan-4-yl)-6,8-difluoro-4-oxo-quinoline-3-carboxylic acidYield 36.6%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

A mixture of 1.14 g (4 mmol) 1-cyclopropyl-6,7,8-trifluoro-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid, 0.62 g (5.5 mmol) 1,4-diazabicyclo[3.2.1]octane and 0.40 g (4 mmol) 1,8-diazabicyclo[5.4.0]undec-7-ene in 20 ml acetonitrile was refluxed 6.5 hours. After cooling to room temperature the solid product was filtered, suspended in 10 ml hot ethanol, cooled, and filtered to afford 0.55 g of 1-cyclopropyl-7-(1,4-diazabicyclo[3.2.1]octan-4-yl)-6,8-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid, mp 280° C. (dec).

Workup

  1. temperaturewas refluxed 6.5 hours
  2. filtrationwas filtered
  3. temperaturecooled
  4. filtrationfiltered

Sources & evidence

ORD record
ord-52ae4cdae5ea47828f7d4a37a08990f2
Source dataset
uspto-grants-1986_02
Patent number
US04571396

Reaction notes

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