Hydrochloric Acid → N-(azetidin-1-ylsulfonyl)-5-chloro-2-fluoro-4-((1-(trifluoromethyl)-cyclopentyl)methoxy)benzamide

HRID 1849599Notes

Reaction equation

HRID 1849599 reaction equation
[Cl:1][C:2]1[C:3]([O:12][CH2:13][C:14]2([C:19]([F:22])([F:21])[F:20])[CH2:18][CH2:17][CH2:16][CH2:15]2)=[CH:4][C:5]([F:11])=[C:6]([CH:10]=1)[C:7]([OH:9])=O.Cl.C(N=C=NCCCN(C)C)C.[N:35]1([S:39]([NH2:42])(=[O:41])=[O:40])[CH2:38][CH2:37][CH2:36]1.Cl>ClCCl.CN(C)C1C=CN=CC=1.C(OCC)(=O)C>[N:35]1([S:39]([NH:42][C:7](=[O:9])[C:6]2[CH:10]=[C:2]([Cl:1])[C:3]([O:12][CH2:13][C:14]3([C:19]([F:21])([F:22])[F:20])[CH2:18][CH2:17][CH2:16][CH2:15]3)=[CH:4][C:5]=2[F:11])(=[O:41])=[O:40])[CH2:38][CH2:37][CH2:36]1

Participants

8

Reactant 4

HCID 313Hydrochloric AcidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 450805661-AzetidinesulfonamideHCID 867034525-Chloro-2-fluoro-4-((1-(trifluoromethyl)-cyclopentyl)methoxy)benzoic acid

Product 1

HCID 86703454N-(azetidin-1-ylsulfonyl)-5-chloro-2-fluoro-4-((1-(trifluoromethyl)-cyclopentyl)methoxy)benzamideYield 47.9%

Reagents, catalysts & solvents 3

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

Procedure

To a stirred solution of 5-chloro-2-fluoro-4-((1-(trifluoromethyl)cyclopentyl)-methoxy)benzoic acid (0.34 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 mixture was stirred at ambient temperature for 10 minutes, azetidine-1-sulfonamide (0.20 g, 1.50 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 (0.22 g, 46%) as a colorless solid: 1H NMR (300 MHz, CDCl3) δ 8.61 (br s, 1H), 8.11 (d, J=7.2 Hz, 1H), 6.69 (d, J=12.9 Hz, 1H), 4.22 (br s, 4H), 4.03 (s, 2H), 2.31-2.17 (m, 2H), 2.08-1.92 (m, 2H), 1.89-1.70 (m, 6H); MS (ES+) m/z 459.0, 461.0 (M+1); MS (ES−) m/z 457.1, 459.1 (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-754e92d3bc194d75afdb1431b9248117
Source dataset
uspto-grants-2015_02
Patent number
US08952169B2

Reaction notes

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