HCID 10528795, compound → [[3-(2-amino-1,2-dioxoethyl)-1-([1,1'-biphenyl]-2-ylmethyl)-2-cyclopropyl-1H-indol-4-yl]oxy]acetic acid

HRID 566682Notes

Reaction equation

HRID 566682 reaction equation
C[O:2][C:3](=[O:36])[CH2:4][O:5][C:6]1[CH:14]=[CH:13][CH:12]=[C:11]2[C:7]=1[C:8]([C:31](=[O:35])[C:32]([NH2:34])=[O:33])=[C:9]([CH:28]1[CH2:30][CH2:29]1)[N:10]2[CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=1[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1>[OH-].[Na+].CO>[NH2:34][C:32](=[O:33])[C:31]([C:8]1[C:7]2[C:11](=[CH:12][CH:13]=[CH:14][C:6]=2[O:5][CH2:4][C:3]([OH:36])=[O:2])[N:10]([CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=2[C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[C:9]=1[CH:28]1[CH2:29][CH2:30]1)=[O:35]

Participants

4

Reactant 1

HCID 10528795HCID 10528795, compound

Product 1

HCID 9804663[[3-(2-amino-1,2-dioxoethyl)-1-([1,1'-biphenyl]-2-ylmethyl)-2-cyclopropyl-1H-indol-4-yl]oxy]acetic acidYield 62.3%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 14798Sodium HydroxideSolvent

Procedure

A mixture of 175 mg (0.36 mmol) of [[3-(2-amino-1,2-dioxoethyl)-1-([1,1′-biphenyl]-2-ylmethyl)-2-cyclopropyl-1H-indol-4-yl]oxy]acetic acid methyl ester in 4 mL of 1N NaOH and 10 mL of MeOH was stirred for 0.5 hours, concentrated at reduced pressure and the residue taken up in EtOAc/water. The aqueous layer was separated, made acidic with 1N HCl to pH 2-3 and extracted with EtOAc. The EtOAc solution was dried (MgSO4), evaporated and the residue stirred with EtOAc/ether. The insoluble material was filtered to give 105 mg (62% yield) of [[3-(2-amino-1,2-dioxoethyl)-1-([1,1′-biphenyl]-2-ylmethyl)-2-cyclopropyl-1H-indol-4-yl]oxy]acetic acid, mp, 172-174° C.

Workup

  1. concentrationconcentrated at reduced pressure
  2. customThe aqueous layer was separated
  3. extractionextracted with EtOAc
  4. dry with materialThe EtOAc solution was dried (MgSO4)
  5. customevaporated
  6. stirringthe residue stirred with EtOAc/ether
  7. filtrationThe insoluble material was filtered

Sources & evidence

ORD record
ord-115a352b00c74150943ceba66566ac72
Source dataset
uspto-grants-2001_01
Patent number
US06175021B1

Reaction notes

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