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Acetoxyacetyl chloride → 2-{[3-Acetyl-6-(4-chlorophenyl)-7-(2,4-dichlorophenyl)-1-methyl-2-oxo-1,2-dihydro-1,8-naphthyridin-4-yl]amino}-2-oxoethyl acetate

HRID 13818
Notes
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Reaction equation

HRID 13818 reaction equation
[C:1]([C:4]1[C:5](=[O:31])[N:6]([CH3:30])[C:7]2[C:12]([C:13]=1[NH2:14])=[CH:11][C:10]([C:15]1[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][CH:16]=1)=[C:9]([C:22]1[CH:27]=[CH:26][C:25]([Cl:28])=[CH:24][C:23]=1[Cl:29])[N:8]=2)(=[O:3])[CH3:2].[C:32]([O:35][CH2:36][C:37](Cl)=[O:38])(=[O:34])[CH3:33]>C(#N)C.CCOC(C)=O>[C:32]([O:35][CH2:36][C:37]([NH:14][C:13]1[C:12]2[C:7](=[N:8][C:9]([C:22]3[CH:27]=[CH:26][C:25]([Cl:28])=[CH:24][C:23]=3[Cl:29])=[C:10]([C:15]3[CH:16]=[CH:17][C:18]([Cl:21])=[CH:19][CH:20]=3)[CH:11]=2)[N:6]([CH3:30])[C:5](=[O:31])[C:4]=1[C:1](=[O:3])[CH3:2])=[O:38])(=[O:34])[CH3:33]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 26297Acetoxyacetyl chlorideHCID 112600073-acetyl-4-amino-6-(4-chlorophenyl)-7-(2,4-dichlorophenyl)-1-methyl-1,8-naphthyridin-2(1H)-one

Product 1

HCID 113651622-{[3-Acetyl-6-(4-chlorophenyl)-7-(2,4-dichlorophenyl)-1-methyl-2-oxo-1,2-dihydro-1,8-naphthyridin-4-yl]amino}-2-oxoethyl acetate

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolvent
HCID 8857
Ethyl Acetate
Solvent

Conditions

Temperature
90 °C

Procedure

To the product of Example 2 (120 mg) in acetonitrile (2 mL) was added acetoxyacetyl chloride (0.2 mL). The reaction was heated to 90° C. in a CEM microwave reactor for a total of 34 minutes. The reaction was diluted with EtOAc and was washed with saturated aqueous NaHCO3 solution. The concentrated residue was purified by flash chromatography on silica gel gradient eluted with 0-60% EtOAc in hexane affording the title compound. HPLC/MS: 572.1 (M+1), 574.1 (M+3); Rt=4.06 min.

Workup

  1. washwas washed with saturated aqueous NaHCO3 solution
  2. customThe concentrated residue was purified by flash chromatography on silica gel gradient
  3. washeluted with 0-60% EtOAc in hexane affording the title compound

Sources & evidence

ORD record
ord-6bbe050a73ec42f596a556812d626ba7
Source dataset
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07728141B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes