Hydrochloric Acid → HCID 178468773, compound

HRID 1977397Notes

Reaction equation

HRID 1977397 reaction equation
[SH:1][C:2]1[N:6]([CH2:7][C:8]2[CH:13]=[CH:12][C:11]([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=3[C:20]3[NH:24][N:23]=[N:22][N:21]=3)=[CH:10][CH:9]=2)[C:5]2[C:25]([C:29]([O:31][CH2:32][CH3:33])=[O:30])=[CH:26][CH:27]=[CH:28][C:4]=2[N:3]=1.[OH-].[Na+].[CH2:36](I)[CH3:37].Cl>C(O)C>[CH2:36]([S:1][C:2]1[N:6]([CH2:7][C:8]2[CH:9]=[CH:10][C:11]([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=3[C:20]3[NH:24][N:23]=[N:22][N:21]=3)=[CH:12][CH:13]=2)[C:5]2[C:25]([C:29]([O:31][CH2:32][CH3:33])=[O:30])=[CH:26][CH:27]=[CH:28][C:4]=2[N:3]=1)[CH3:37]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 6340IodoethaneHCID 14798Sodium HydroxideHCID 178468775HCID 178468775, compound

Product 1

HCID 178468773HCID 178468773, compoundYield 57%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of ethyl 2-mercapto-1-[[2′-(1H-tetrazol-5-yl)biphenyl-4-yl]methyl]benzimidazole-7-carboxylate (0.91 g) in ethanol (13 ml) containing 1N-NaOH (4 ml) was added ethyl iodide (0.34 g), and the mixture was stirred at room temperature for 4 hours. The reaction mixture was adjusted to pH 4 with dilute hydrochloric acid to give crystals. The crystals were collected by filtration and purified by column chromatography on silica gel. Recrystallization from ethyl acetate gave colorless prisms (0.55 g, 57%), m.p. 153-154° C. (decomp.).

Workup

  1. customto give crystals
  2. filtrationThe crystals were collected by filtration
  3. custompurified by column chromatography on silica gel
  4. customRecrystallization from ethyl acetate

Sources & evidence

ORD record
ord-6409b5e3133a496c9df671335eeb1536
Source dataset
uspto-grants-2001_05
Patent number
US06232334B1

Reaction notes

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