Acetic Acid → HCID 178468944, compound

HRID 265102Notes

Reaction equation

HRID 265102 reaction equation
[CH2:1]([C:3]1[N:4]([CH2:17][C:18]2[CH:23]=[CH:22][C:21]([C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=3[C:30]3[N:34](C(C4C=CC=CC=4)(C4C=CC=CC=4)C4C=CC=CC=4)[N:33]=[N:32][N:31]=3)=[CH:20][CH:19]=2)[C:5]([C:12]([O:14][CH2:15][CH3:16])=[O:13])=[C:6]([C:8]([OH:11])([CH3:10])[CH3:9])[N:7]=1)[CH3:2].C(O)(=O)C>O>[CH2:1]([C:3]1[N:4]([CH2:17][C:18]2[CH:23]=[CH:22][C:21]([C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=3[C:30]3[NH:34][N:33]=[N:32][N:31]=3)=[CH:20][CH:19]=2)[C:5]([C:12]([O:14][CH2:15][CH3:16])=[O:13])=[C:6]([C:8]([OH:11])([CH3:9])[CH3:10])[N:7]=1)[CH3:2]

Participants

4

Reactant 2

HCID 176Acetic AcidHCID 19036058Ethyl 2-ethyl-4-(1-hydroxy-1-methylethyl)-1-{4-[2-(trityltetrazol-5-yl)phenyl]phenyl}methylimidazole-5-carboxylate

Product 1

HCID 178468944HCID 178468944, compoundYield 97.2%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A solution of 1.9 g of ethyl 2-ethyl-4-(1-hydroxy-1-methylethyl)-1-{4-[2-(trityltetrazol-5-yl)phenyl]phenyl}methylimidazole-5-carboxylate [prepared as described in step (a) above] in 28 ml of 75% v/v aqueous acetic acid was stirred at 60° C. for 2 hours. At the end of this time, the reaction mixture was diluted with 7 ml of water and cooled to room temperature. Precipitated trityl alcohol was removed by filtration, and the filtrate was concentrated by evaporation under reduced pressure. The syrupy residue was crystallized in diisopropyl ether, to give 1.21 g of the title compound, melting at 166°-167° C.

Workup

  1. customPrecipitated trityl alcohol was removed by filtration
  2. concentrationthe filtrate was concentrated by evaporation under reduced pressure
  3. customThe syrupy residue was crystallized in diisopropyl ether

Sources & evidence

ORD record
ord-e7ad7329bdf1412aa2eef1159e29074c
Source dataset
uspto-grants-1997_07
Patent number
US05646171

Reaction notes

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