Acetyl chloride → HCID 57708182, compound

HRID 643715Notes

Reaction equation

HRID 643715 reaction equation
[CH:1]1([CH2:4][N:5]2[C:9]3[CH:10]=[CH:11][C:12]([S:14]([C:17]([CH3:21])([CH3:20])[CH2:18][NH2:19])(=[O:16])=[O:15])=[CH:13][C:8]=3[N:7]=[C:6]2[CH2:22][C:23]([CH3:26])([CH3:25])[CH3:24])[CH2:3][CH2:2]1.C(N(CC)CC)C.[C:34](Cl)(=[O:36])[CH3:35]>ClCCl>[CH:1]1([CH2:4][N:5]2[C:9]3[CH:10]=[CH:11][C:12]([S:14]([C:17]([CH3:20])([CH3:21])[CH2:18][NH:19][C:34](=[O:36])[CH3:35])(=[O:16])=[O:15])=[CH:13][C:8]=3[N:7]=[C:6]2[CH2:22][C:23]([CH3:26])([CH3:25])[CH3:24])[CH2:2][CH2:3]1

Participants

5

Reactant 3

HCID 6367Acetyl chlorideHCID 8471TriethylamineHCID 68615718HCID 68615718, compound

Product 1

HCID 57708182HCID 57708182, compoundYield 77%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 2-{[1-(cyclopropylmethyl)-2-(2,2-dimethylpropyl)-1H-benzimidazol-5-yl]sulfonyl}-2-methylpropan-1-amine (Step K, 132 mg, 0.350 mmol) and triethylamine (98 μL, 0.700 mmol) in dichloromethane (4 mL) was added acetyl chloride (0.03 mL, 0.420 mmol) at room temperature. After stirring for 15 min, the mixture was concentrated under reduced pressure. The residue was purified by HPLC (ODS, gradient elution with Acetonitrile/0.01% aq. NH3=4:96 to 96:4, by volume; flow rate 40 mL/min) to afford the title compound (113 mg, 77%) as an amorphous.

Workup

  1. concentrationthe mixture was concentrated under reduced pressure
  2. customThe residue was purified by HPLC (ODS, gradient elution with Acetonitrile/0.01% aq. NH3=4:96 to 96:4, by volume; flow rate 40 mL/min)

Sources & evidence

ORD record
ord-007e701684964699b526072c081ae732
Source dataset
uspto-grants-2010_04
Patent number
US07700618B2

Reaction notes

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