HCID 66965643, compound → 2-[2,6-dimethyl-4-(2-pyrrolidin-1-yl-ethoxy)-phenyl]-3H-benzoimidazole-5-carboxylic acid (3,4-dimethyl-phenyl)-amide

HRID 1514883Notes

Reaction equation

HRID 1514883 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([CH:16]=[CH:17][C:18]=1[NH2:19])[C:5]([NH:7][C:8]1[CH:13]=[CH:12][C:11]([CH3:14])=[C:10]([CH3:15])[CH:9]=1)=[O:6].[CH3:20][C:21]1[CH:28]=[C:27]([O:29][CH2:30][CH2:31][N:32]2[CH2:36][CH2:35][CH2:34][CH2:33]2)[CH:26]=[C:25]([CH3:37])[C:22]=1[CH:23]=O>CO>[CH3:15][C:10]1[CH:9]=[C:8]([NH:7][C:5]([C:4]2[CH:16]=[CH:17][C:18]3[N:19]=[C:23]([C:22]4[C:21]([CH3:20])=[CH:28][C:27]([O:29][CH2:30][CH2:31][N:32]5[CH2:36][CH2:35][CH2:34][CH2:33]5)=[CH:26][C:25]=4[CH3:37])[NH:1][C:2]=3[CH:3]=2)=[O:6])[CH:13]=[CH:12][C:11]=1[CH3:14]

Participants

4

Reactant 2

HCID 66965643HCID 66965643, compoundHCID 866512592,6-Dimethyl-4-(2-pyrrolidin-1-yl-ethoxy)-benzaldehyde

Product 1

HCID 669658422-[2,6-dimethyl-4-(2-pyrrolidin-1-yl-ethoxy)-phenyl]-3H-benzoimidazole-5-carboxylic acid (3,4-dimethyl-phenyl)-amide

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A mixture of 3,4-diamino-N-(3,4-dimethyl-phenyl)-benzamide (0.1 mL in 0.2 M DMSO solution), 2,6-dimethyl-4-(2-pyrrolidin-1-yl-ethoxy)-benzaldehyde (0.1 mL in 0.2 M toluene solution) and FeCl3 (0.05 mL in 0.02M THF solution) was stirred in open air at ambient temperature overnight. The mixture was then diluted by MeOH and the whole was loaded onto a solid phase extraction (SPE) cartridge that contained strong cation exchange (SCX) (1 g media in 6 mL cartridge, United Chemical Technology). Wash-to-waste (5 mL MeOH) was followed by elute-to-collect (5 mL 20:2:1 ethyl acetate-MeOH-Et3N) and, after evaporation of volatiles, the crude was further purified by silica gel column chromatography to give 2-[2,6-dimethyl-4-(2-pyrrolidin-1-yl-ethoxy)-phenyl]-3H-benzoimidazole-5-carboxylic acid (3,4-dimethyl-phenyl)-amide: MS (m/z) 483 (M+1).

Workup

  1. extractionthe whole was loaded onto a solid phase extraction (SPE) cartridge that
  2. washWash-to-waste (5 mL MeOH)
  3. customby elute-to-collect (5 mL 20:2:1 ethyl acetate-MeOH-Et3N)
  4. customafter evaporation of volatiles
  5. customthe crude was further purified by silica gel column chromatography

Sources & evidence

ORD record
ord-b42d5cf064b4448db55a00fd183600a3
Source dataset
uspto-grants-2012_07
Patent number
US08222248B2

Reaction notes

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