Water → HCID 21876263, compound

HRID 724200Notes

Reaction equation

HRID 724200 reaction equation
[Cl:1][C:2]1[C:3]([C:22]([NH2:24])=[O:23])=[CH:4][C:5]2[N:9]=[C:8]([CH2:10][CH3:11])[N:7]([C:12]3[CH:17]=[CH:16][C:15]([CH2:18][CH2:19][OH:20])=[CH:14][CH:13]=3)[C:6]=2[CH:21]=1.C(N(CC)CC)C.[CH3:32][S:33](Cl)(=[O:35])=[O:34].O>ClCCl>[CH3:32][S:33]([O:20][CH2:19][CH2:18][C:15]1[CH:14]=[CH:13][C:12]([N:7]2[C:6]3[CH:21]=[C:2]([Cl:1])[C:3]([C:22]([NH2:24])=[O:23])=[CH:4][C:5]=3[N:9]=[C:8]2[CH2:10][CH3:11])=[CH:17][CH:16]=1)(=[O:35])=[O:34]

Participants

6

Reactant 4

HCID 962WaterHCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 21875600HCID 21875600, compound

Product 1

HCID 21876263HCID 21876263, compoundYield 50%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A mixture of 6-chloro-2-ethyl-1-[4-(2-hydroxyethyl)phenyl]-1H-benzimidazole-5-carboxamide (Example 111, step 4, 500 mg, 1.45 mmol), triethylamine (293 mg, 2.90 mmol) and methansulfonyl chloride (322 mg, 2.9 mmol) in dichloromethane (20 ml) was stirred at room temperature for 6 h. The reaction mixture was poured into water, and extracted with dichloromethane (50 ml). The organic layer was washed with brine (50 ml), then dried (Na2SO4). After removal of solvent, the crude product was purified by TLC with hexane/ethyl acetate (1:1) to afford 304 mg (50%) of the title compound as white solids.

Workup

  1. extractionextracted with dichloromethane (50 ml)
  2. washThe organic layer was washed with brine (50 ml)
  3. dry with materialdried (Na2SO4)
  4. customAfter removal of solvent
  5. customthe crude product was purified by TLC with hexane/ethyl acetate (1:1)

Sources & evidence

ORD record
ord-e383ec720005499ea4c709654dcbf49e
Source dataset
uspto-grants-2006_11
Patent number
US07141580B2

Reaction notes

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