Hydrochloric Acid → HCID 178502206, compound

HRID 79753Notes

Reaction equation

HRID 79753 reaction equation
C([O:5][C:6]([N:8]1[CH2:12][CH:11]([C:13]2[NH:14][CH:15]=[C:16]([C:18]3[CH:23]=[CH:22][C:21]([Br:24])=[CH:20][CH:19]=3)[N:17]=2)[N:10]([C:25](=[O:35])[CH:26]([NH:30][C:31]([O:33][CH3:34])=[O:32])[CH:27]([CH3:29])[CH3:28])[CH2:9]1)=O)(C)(C)C.Cl.C(N(C(C)C)CC)(C)C.C(Cl)(=O)[C:47]1[CH:52]=[CH:51][CH:50]=[CH:49][CH:48]=1>ClCCl>[CH3:34][O:33][C:31](=[O:32])[NH:30][CH:26]([C:25]([N:10]1[CH:11]([C:13]2[NH:14][CH:15]=[C:16]([C:18]3[CH:23]=[CH:22][C:21]([Br:24])=[CH:20][CH:19]=3)[N:17]=2)[CH2:12][N:8]([C:6](=[O:5])[C:47]2[CH:52]=[CH:51][CH:50]=[CH:49][CH:48]=2)[CH2:9]1)=[O:35])[CH:27]([CH3:29])[CH3:28]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 7412Benzoyl chlorideHCID 81531DiisopropylethylamineHCID 178502207HCID 178502207, compound

Product 1

HCID 178502206HCID 178502206, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

4-(4-Bromo-phenyl)-3′-(2-methoxycarbonylamino-3-methyl-butyryl)-2′,3′,4′,5′-tetrahydro-1H-[2,4′]biimidazolyl-1′-carboxylic acid tert-butyl ester (55.6 mg, 0.101 mmol) was dissolved in dichloromethane (0.5 mL) and HCl (4M dioxane, 0.5 mL) was added. The resultant suspension was stirred at room temperature for 20 minutes, after which all volatiles were removed in vacuo. The crude material was dissolved in THF (1 mL) and diisopropyl ethylamine (26.0 mg, 0.202 mmol) was added, followed by benzoyl chloride (15.6 mg, 0.11 mmol). The reaction was stirred at room temperature. After 10 minutes, all starting material was consumed. All volatiles were removed in vacuo and the crude brown solid {1-[1′-Benzoyl-4-(4-bromo-phenyl)-1′,2′,4′,5′-tetrahydro-1H-[2,4′]biimidazolyl-3′-carbonyl]-2-methyl-propyl}-carbamic acid methyl ester was used in the coupling reaction without further analysis or purification: LCMS-ESI+: calc'd for C26H28BrN5O4: 554.4 (M+). Found: 554.3/556.4 (M+H+).

Workup

  1. customafter which all volatiles were removed in vacuo
  2. dissolutionThe crude material was dissolved in THF (1 mL)
  3. customall starting material was consumed
  4. customAll volatiles were removed in vacuo
  5. customthe crude brown solid {1-[1′-Benzoyl-4-(4-bromo-phenyl)-1′,2′,4′,5′-tetrahydro-1H-[2,4′]biimidazolyl-3′-carbonyl]-2-methyl-propyl}-carbamic acid methyl ester was used in the coupling reaction without further analysis or purification

Sources & evidence

ORD record
ord-2b96e3fe4d73454cb7b169ba2147bae8
Source dataset
uspto-grants-2014_09
Patent number
US08841278B2

Reaction notes

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