Triethylamine → HCID 23284654, compound

HRID 369310Notes

Reaction equation

HRID 369310 reaction equation
[NH2:1][C:2]1[N:7]=[C:6]([N:8]2[C:17]3[C:12](=[CH:13][C:14]([F:20])=[C:15](F)[C:16]=3[Cl:18])[C:11](=[O:21])[C:10]([C:22]([OH:24])=[O:23])=[CH:9]2)[C:5]([F:25])=[CH:4][C:3]=1[F:26].[NH2:27][CH2:28][CH:29]([OH:32])[CH2:30][OH:31].C(N(CC)CC)C>N1C=CC=CC=1>[NH2:1][C:2]1[N:7]=[C:6]([N:8]2[C:17]3[C:12](=[CH:13][C:14]([F:20])=[C:15]([NH:27][CH2:28][CH:29]([OH:32])[CH2:30][OH:31])[C:16]=3[Cl:18])[C:11](=[O:21])[C:10]([C:22]([OH:24])=[O:23])=[CH:9]2)[C:5]([F:25])=[CH:4][C:3]=1[F:26]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 735613-Amino-1,2-propanediolHCID 154349011-(6-Amino-3,5-difluoro-2-pyridinyl)-8-chloro-6,7-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid

Product 1

HCID 23284654HCID 23284654, compound

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Conditions

Temperature
50 °C

Procedure

1-(6-Amino-3,5-difluoropyridin-2-yl)-8-chloro-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (150 mg), 3-amino-1,2-propanediol (45 ml) and triethylamine (150 mg) were added to pyridine (500 mg), and the mixture was stirred at 50° C. for 18 hours. The reaction mixture was concentrated under reduced pressure. A process of adding ethanol (2 ml) to the residue and then concentrating the mixture under reduced pressure was conducted twice repeatedly. Concentrated hydrochloric acid (60 mg) was added to the residue, and the mixture was concentrated under reduced pressure. Ethanol (1.5 ml) was added to the resultant residue, and deposits were collected by filtration and washed with ethanol and diisopropyl ether in that order to obtain the title compound (107 mg) as a colorless powder.

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. concentrationA process of adding ethanol (2 ml) to the residue and then concentrating the mixture under reduced pressure
  3. additionConcentrated hydrochloric acid (60 mg) was added to the residue
  4. concentrationthe mixture was concentrated under reduced pressure
  5. additionEthanol (1.5 ml) was added to the resultant residue, and deposits
  6. filtrationwere collected by filtration
  7. washwashed with ethanol and diisopropyl ether in that order

Sources & evidence

ORD record
ord-ef1494b27eae42889f933514338eb3b3
Source dataset
uspto-grants-2000_10
Patent number
US06136823

Reaction notes

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