Iodoethane → HCID 58305834, compound

HRID 912569Notes

Reaction equation

HRID 912569 reaction equation
[S:1]([C:5]1[CH:10]=[CH:9][C:8]([NH:11][C:12]([C:14]2[CH:18]=[C:17]([CH3:19])[N:16]([C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=3[C:26]([F:29])([F:28])[F:27])[C:15]=2[CH3:30])=[O:13])=[CH:7][CH:6]=1)(=[O:4])(=[O:3])[NH2:2].C([O-])([O-])=O.[K+].[K+].[CH2:37](I)[CH3:38]>CN(C=O)C>[CH2:37]([NH:2][S:1]([C:5]1[CH:10]=[CH:9][C:8]([NH:11][C:12]([C:14]2[CH:18]=[C:17]([CH3:19])[N:16]([C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=3[C:26]([F:28])([F:27])[F:29])[C:15]=2[CH3:30])=[O:13])=[CH:7][CH:6]=1)(=[O:3])=[O:4])[CH3:38]

Participants

5

Reactant 3

HCID 6340Iodoethane2×HCID 11430Potassium CarbonateHCID 59807726HCID 59807726, compound

Product 1

HCID 58305834HCID 58305834, compoundYield 19.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a suspension of 2,5-dimethyl-1-[2-(trifluoromethyl)phenyl]-1H-pyrrole-3-carboxylic acid (4-sulfamoyl-phenyl)-amide (83 mg, 0.19 mmol) and K2CO3 (34 mg) in anhyd DMF (0.5 mL) was added ethyl iodide (15 μL, 0.19 mmol). After 19h additional ethyl iodide (10 μL) was added. After 23 h total the reaction mixture was concentrated to dryness in vacuo. The residue was purified by reverse-phase HPLC to yield 2,5-dimethyl-1-[2-(trifluoromethyl)phenyl]-1H-pyrrole-3-carboxylic acid (4-ethylsulfamoyl-phenyl)-amide (17 mg, 19%) as a colorless powder; 1H NMR (DMSO-d6): δ 9.7 (s, 1H), 7.90 (d, J=8 Hz, 1H), 7.85 (d, J=8 Hz, 2H), 7.81 (t, J=8 Hz, 1H), 7.70 (t, J=8 Hz, 1H), 7.60 (d, J=8 Hz, 2H), 7.39 (d, J=8 Hz, 1H), 7.28 (d, J=8 Hz, 1H), 6.54 (s, 1H), 2.66 (quintet, J=7 Hz, 2H), 2.03 (s, 3H), 1.77 (s, 3H), 0.86 (t, J=7 Hz, 3H); MS (ESI) m/z 466 [M+H]+. Also recovered from the reaction was dimethyl-1-[2-(trifluoromethyl)phenyl]-1H-pyrrole-3-carboxylic acid (4-diethylsulfamoyl-phenyl)-amide (12 mg, 13%) as a colorless solid; 1H NMR (DMSO-d6): δ 9.9 (s, 1H), 8.11 (d, J=8 Hz, 1H), 8.08 (d, J=7 Hz, 2H), 8.04 (t, J=8 Hz, 1H), 7.92 (t, J=8 Hz, 1H), 7.82 (d, J=7 Hz, 2H), 7.60 (d, J=8 Hz, 1H), 6.77 (s, 1H), 3.25 (q, J=7 Hz, 4H), 2.24 (s, 3H), 1.99 (s, 3H), 1.45 (t, J=7 Hz, 6H); MS (ESI) m/z 494 [M+H]+.

Workup

  1. concentrationthe reaction mixture was concentrated to dryness in vacuo
  2. customThe residue was purified by reverse-phase HPLC

Sources & evidence

ORD record
ord-98bfa3f47cf14949a548281f6bf95fb6
Source dataset
uspto-grants-2011_09
Patent number
US08026237B2

Reaction notes

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