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Methanol → 5-[4-(5-Fluoro-2-hydroxyphenyl)-2-hydroxy-4-methyl-2-trifluoromethylpentylamino]quinoline-2-carboxylic acid amide

HRID 2182677
Notes
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Reaction equation

HRID 2182677 reaction equation
[F:1][C:2]1[CH:3]=[CH:4][C:5]([O:33]C)=[C:6]([C:8]([CH3:32])([CH3:31])[CH2:9][C:10]([OH:30])([C:26]([F:29])([F:28])[F:27])[CH2:11][NH:12][C:13]2[CH:22]=[CH:21][CH:20]=[C:19]3[C:14]=2[CH:15]=[CH:16][C:17]([C:23]([NH2:25])=[O:24])=[N:18]3)[CH:7]=1.B(Br)(Br)Br.CO>ClCCl>[F:1][C:2]1[CH:3]=[CH:4][C:5]([OH:33])=[C:6]([C:8]([CH3:31])([CH3:32])[CH2:9][C:10]([OH:30])([C:26]([F:28])([F:27])[F:29])[CH2:11][NH:12][C:13]2[CH:22]=[CH:21][CH:20]=[C:19]3[C:14]=2[CH:15]=[CH:16][C:17]([C:23]([NH2:25])=[O:24])=[N:18]3)[CH:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 887MethanolHCID 25134Boron tribromideHCID 207862285-[4-(5-Fluoro-2-methoxyphenyl)-2-hydroxy-4-methyl-2-trifluoromethylpentylamino]quinoline-2-carboxylic acid amide

Product 1

HCID 207862245-[4-(5-Fluoro-2-hydroxyphenyl)-2-hydroxy-4-methyl-2-trifluoromethylpentylamino]quinoline-2-carboxylic acid amide

Reagents, catalysts & solvents 1

HCID 6344
Dichloromethane
Solvent
2×

Procedure

220 mg (0.46 mmol) of 5-[4-(5-fluoro-2-methoxyphenyl)-2-hydroxy-4-methyl-2-trifluoromethylpentylamino]quinoline-2-carboxylic acid amide is dissolved in 5.0 ml of dichloromethane and mixed with 9.2 ml of a 1N boron tribromide solution in dichloromethane. After 20 hours at room temperature, the reaction is halted by adding methanol. The solvent is removed in a vacuum, the residue is taken up in saturated sodium bicarbonate solution and ethyl acetate, extracted with ethyl acetate, and the combined organic phases are dried on sodium sulfate. After removal of the solvent and purification on silica gel with hexane-ethyl acetate (0-100%), 60 mg (28% of theory) of the product is obtained.

Workup

  1. customThe solvent is removed in a vacuum
  2. extractionethyl acetate, extracted with ethyl acetate
  3. customthe combined organic phases are dried on sodium sulfate
  4. customAfter removal of the solvent and purification on silica gel with hexane-ethyl acetate (0-100%), 60 mg (28% of theory) of the product
  5. customis obtained

Sources & evidence

ORD record
ord-dbf28c5fea124c42a2bd06420ea2a9a8
Source dataset
uspto-grants-2005_05
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06897224B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes