1,8-Diazabicyclo(5.4.0)undec-7-ene → 7-[3-[(Ethylamino)methyl]-1-pyrrolidinyl]-6,8-difluoro-1,4-dihydro-1-(1-methylethyl)-4-oxo-3-quinolinecarboxylic Acid

HRID 980693Notes

Reaction equation

HRID 980693 reaction equation
[F:1][C:2]1[CH:3]=[C:4]2[C:9](=[C:10]([F:13])[C:11]=1F)[N:8]([CH:14]([CH3:16])[CH3:15])[CH:7]=[C:6]([C:17]([OH:19])=[O:18])[C:5]2=[O:20].[CH2:21]([NH:23][CH2:24][CH:25]1[CH2:29][CH2:28][NH:27][CH2:26]1)[CH3:22].N12CCCN=C1CCCCC2>C(#N)C>[CH2:21]([NH:23][CH2:24][CH:25]1[CH2:29][CH2:28][N:27]([C:11]2[C:10]([F:13])=[C:9]3[C:4]([C:5](=[O:20])[C:6]([C:17]([OH:19])=[O:18])=[CH:7][N:8]3[CH:14]([CH3:16])[CH3:15])=[CH:3][C:2]=2[F:1])[CH2:26]1)[CH3:22]

Participants

5

Reactant 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 134776926,7,8-Trifluoro-1,4-dihydro-1-isopropyl-4-oxoquinoline-3-carboxylic acidHCID 13491786Ethyl-pyrrolidin-3-ylmethyl-amine

Product 1

HCID 137728147-[3-[(Ethylamino)methyl]-1-pyrrolidinyl]-6,8-difluoro-1,4-dihydro-1-(1-methylethyl)-4-oxo-3-quinolinecarboxylic AcidYield 73.7%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

A solution of 0.57 g (2.0 mmol) of 6,7,8-trifluoro-1,4-dihydro-1-(1-methylethyl)-4-oxo-3-quinolinecarboxylic acid, 0.32 ml (2.2 mmol) of 3-[(ethylamino)methyl]pyrrolidine, 0.30 ml (2.0 mmol) of 1,8-diazabicyclo[5.4.0]undec-7-ene and 15 ml of acetonitrile was heated under reflux for one hour. After cooling to room temperature the mixture was filtered and the solid washed with acetonitrile and methanol to give 0.58 g of the title compound, mp 230°-231° C.

Workup

  1. temperatureunder reflux for one hour
  2. filtrationwas filtered
  3. washthe solid washed with acetonitrile and methanol

Sources & evidence

ORD record
ord-90cf85f9a5d84dad9a5253e6777854b1
Source dataset
uspto-grants-1987_01
Patent number
US04638067

Reaction notes

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