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Hydrochloric Acid → 5-cyclopropyl-2-fluoro-N-(methylsulfonyl)-4-((1-(trifluoromethyl)-cyclohexyl)methoxy)benzamide

HRID 1849597
Notes
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Reaction equation

HRID 1849597 reaction equation
[CH:1]1([C:4]2[C:5]([O:14][CH2:15][C:16]3([C:22]([F:25])([F:24])[F:23])[CH2:21][CH2:20][CH2:19][CH2:18][CH2:17]3)=[CH:6][C:7]([F:13])=[C:8]([CH:12]=2)[C:9](O)=[O:10])[CH2:3][CH2:2]1.Cl.C(N=C=NCCCN(C)C)C.[CH3:38][S:39]([NH2:42])(=[O:41])=[O:40].Cl>ClCCl.CN(C)C1C=CN=CC=1.C(OCC)(=O)C>[CH:1]1([C:4]2[C:5]([O:14][CH2:15][C:16]3([C:22]([F:25])([F:24])[F:23])[CH2:21][CH2:20][CH2:19][CH2:18][CH2:17]3)=[CH:6][C:7]([F:13])=[C:8]([CH:12]=2)[C:9]([NH:42][S:39]([CH3:38])(=[O:41])=[O:40])=[O:10])[CH2:3][CH2:2]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 4

HCID 313Hydrochloric AcidHCID 72879MethanesulfonamideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 867034505-Cyclopropyl-2-fluoro-4-((1-(trifluoromethyl)-cyclohexyl)methoxy)benzoic acid

Product 1

HCID 867034515-cyclopropyl-2-fluoro-N-(methylsulfonyl)-4-((1-(trifluoromethyl)-cyclohexyl)methoxy)benzamide
Yield 62%

Reagents, catalysts & solvents 3

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a stirred solution of 5-cyclopropyl-2-fluoro-4-((1-(trifluoromethyl)-cyclohexyl)methoxy)benzoic acid (0.36 g, 1.00 mmol) in dichloromethane (20 mL) were added 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (0.29 g, 1.50 mmol) and 4-dimethylaminopyridine (0.28 g, 2.30 mmol). The reaction was stirred at ambient temperature for 10 minutes, methanesulfonamide (0.15 g, 1.56 mmol) was added and the stirring was continued at ambient temperature for 17 hours. 5% aqueous hydrochloric acid solution (10 mL) were added and diluted with ethyl acetate (100 mL), washed with water and brine; dried over anhydrous sodium sulfate and concentrated in vacuo. Purification of the residue by column chromatography (30% ethyl acetate in hexanes) afforded the title compound (0.27 g, 62%) as a colorless solid: 1H NMR (300 MHz, CDCl3) δ 8.70 (br s, 1H), 7.59 (d, J=9.0 Hz, 1H), 6.59 (d, J=14.1 Hz, 1H), 4.12 (s, 2H), 3.39 (s, 3H), 2.03-1.88 (m, 3H), 1.76-1.63 (m, 5H), 1.48-1.23 (m, 3H), 0.94-0.87 (m, 2H), 0.64-0.58 (m, 2H); MS (ES−) m/z 436.2 (M−1).

Workup

  1. waitthe stirring was continued at ambient temperature for 17 hours
  2. washwashed with water and brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated in vacuo
  5. customPurification of the residue by column chromatography (30% ethyl acetate in hexanes)

Sources & evidence

ORD record
ord-609d6e3f25a64664ba1815fce2fb0a69
Source dataset
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08952169B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes