1,2-Dichloroethane → methyl 6-(2,4-difluorophenyl)-1-(2,6-difluorophenyl)-2-oxo-2H-quinolizine-7-carboxylate

HRID 1360710Notes

Reaction equation

HRID 1360710 reaction equation
[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[C:9]1[N:10]2[C:15]([CH:16]=[CH:17][C:18]=1[C:19]([OH:21])=[O:20])=[C:14]([C:22]1[C:27]([F:28])=[CH:26][CH:25]=[CH:24][C:23]=1[F:29])[C:13](=[O:30])[CH:12]=[CH:11]2.[CH2:31](Cl)CCl.C1C=CC2N(O)N=NC=2C=1>CCOCC.CCOC(C)=O.C(OCC)(=O)C>[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[C:9]1[N:10]2[C:15]([CH:16]=[CH:17][C:18]=1[C:19]([O:21][CH3:31])=[O:20])=[C:14]([C:22]1[C:23]([F:29])=[CH:24][CH:25]=[CH:26][C:27]=1[F:28])[C:13](=[O:30])[CH:12]=[CH:11]2

Participants

6

Reactant 3

HCID 111,2-DichloroethaneHCID 757711-HydroxybenzotriazoleHCID 160653136-(2,4-difluorophenyl)-1-(2,6-difluorophenyl)-2-oxo-2H-quinolizine-7-carboxylic Acid

Product 1

HCID 16065314methyl 6-(2,4-difluorophenyl)-1-(2,6-difluorophenyl)-2-oxo-2H-quinolizine-7-carboxylateYield 55.3%

Reagents, catalysts & solvents 2

HCID 8857Ethyl AcetateSolventHCID 21584169Diethylether ethylacetateSolvent

Procedure

To a solution of 6-(2,4-difluorophenyl)-1-(2,6-difluorophenyl)-2-oxo-2H-quinolizine-7-carboxylic acid (Example 53, 21 mg) in THF/MeOH (1/1) was added EDC (20 mg) and HOBt (10 mg) at room temperature. After stirring for 2 h, the mixture was diluted with ethyl acetate and washed with water, brine, dried over MgSO4 and concentrated. The residue was purified by silica gel (methylene chloride/methanol=20/1) to give the title compound (12 mg).

Workup

  1. washwashed with water, brine
  2. dry with materialdried over MgSO4
  3. concentrationconcentrated
  4. customThe residue was purified by silica gel (methylene chloride/methanol=20/1)

Sources & evidence

ORD record
ord-156007cd62f34afea0c67fa81de26132
Source dataset
uspto-grants-2011_02
Patent number
US07879875B2

Reaction notes

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