Potassium Carbonate → 6-[3-(1,3,3-Trimethyl-2-oxo-2,3-dihydro-1H-indol-6-yloxymethyl)-phenyl]-hexanoic Acid Methyl Ester

HRID 988258Notes

Reaction equation

[OH:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([CH3:14])([CH3:13])[C:7](=[O:12])[N:8]2C)=[CH:4][CH:3]=1.[CH3:15][O:16][C:17](=[O:31])[CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][C:23]1[CH:28]=[CH:27][CH:26]=[C:25]([CH2:29]Br)[CH:24]=1.[C:32](=O)([O-])[O-].[K+].[K+]>CN(C=O)C.CCOC(C)=O>[CH3:15][O:16][C:17](=[O:31])[CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][C:23]1[CH:28]=[CH:27][CH:26]=[C:25]([CH:29]([O:1][C:2]2[CH:10]=[C:9]3[C:5]([C:6]([CH3:13])([CH3:14])[C:7](=[O:12])[NH:8]3)=[CH:4][CH:3]=2)[CH3:32])[CH:24]=1

Participants

Conditions

Temperature: 60 °C

Procedure

To a solution of 6-hydroxy-1,3,3-trimethyl-1,3-dihydro-indol-2-one (396 mg, 2.07 mmol) in DMF (7.6 mL) is added 6-(3-Bromomethyl-phenyl)-hexanoic acid methyl ester (682 mg, 2.28 mmol) and potassium carbonate (315 mg, 2.28 mmol). The resulting mixture is heated to 60° C., stirred for 2 hrs. then cooled to room temp and diluted with EtOAc. The organic layer is washed with water, brine, dried over MgSO4 and concentrated. The residue is purified by flash chromatography (eluting with 30% ethyl acetate/hexanes) to give 352 mg of title compound. MS (ESI) 410 (M+H)+.

Workup

temperaturethen cooled to room temp
washThe organic layer is washed with water, brine
dry with materialdried over MgSO4
concentrationconcentrated
customThe residue is purified by flash chromatography (eluting with 30% ethyl acetate/hexanes)

Sources & evidence

ORD record: ord-41a6895f53ba4afea93c2989834d5a19
Source dataset: uspto-grants-2003_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06635655B1

Reaction notes

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