1-Ethylpiperazine → HCID 19776614, compound

HRID 1613034Notes

Reaction equation

HRID 1613034 reaction equation
Cl[C:2]1[C:11]([C:12]#[N:13])=[C:10]2[C:5]([C:6](=[O:20])[C:7]([C:17]([OH:19])=[O:18])=[CH:8][N:9]2[CH:14]2[CH2:16][CH2:15]2)=[CH:4][C:3]=1[F:21].[CH2:22]([N:24]1[CH2:29][CH2:28][NH:27][CH2:26][CH2:25]1)[CH3:23]>O1CCOCC1>[C:12]([C:11]1[C:2]([N:27]2[CH2:28][CH2:29][N:24]([CH2:22][CH3:23])[CH2:25][CH2:26]2)=[C:3]([F:21])[CH:4]=[C:5]2[C:10]=1[N:9]([CH:14]1[CH2:16][CH2:15]1)[CH:8]=[C:7]([C:17]([OH:19])=[O:18])[C:6]2=[O:20])#[N:13]

Participants

4

Reactant 2

HCID 791961-EthylpiperazineHCID 153471917-Chloro-8-cyano-1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid

Product 1

HCID 19776614HCID 19776614, compound

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Procedure

0.5 g of the product from Example 1 and 0.55 g of N-ethylpiperazine are boiled in 8 ml of dioxane for 3 hours. The mixture is then concentrated in vacuo. The residue is taken up in water and rendered neutral. The mixture is extracted with methylene chloride and the organic phase is separated off, dried over sodium sulphate and concentrated. 0.5 g of the title compound of melting point >300° C. remains.

Workup

  1. concentrationThe mixture is then concentrated in vacuo
  2. extractionThe mixture is extracted with methylene chloride
  3. customthe organic phase is separated off
  4. dry with materialdried over sodium sulphate
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-426b455c1ac7424184ba347a43328c1b
Source dataset
uspto-grants-1993_03
Patent number
US05190955

Reaction notes

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