Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | 2,5-Difluorobenzoyl chloride | HCID 588082 | — |
| Reactant | HCID 86686889 | HCID 86686889 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 86686922 | HCID 86686922 | 68% |
Reaction Steps
To a solution of (6-fluoro-3-methyl-4-piperidin-4-yl-naphthalen-2-yl)-acetic acid methyl ester trifluoroacetate salt (which may be prepared as described above; 102 mg, 0.237 mmol) and N,N-diisopropylethylamine (124 μL, 0.711 mmol) in methylene chloride (10.0 mL) was added 2,5-difluorobenzoyl chloride (62.7 mg, 0.355 mmol). The reaction mixture was stirred for three hours at room temperature Water (˜25 mL) was added and the mixture was extracted with methylene chloride (2×25 mL). The combined organic layers were washed with brine, dried over anhydrous MgSO4, filtered and concentrated. Silica gel chromatography (25% ethyl acetate in hexanes) afforded {4-[1-(2,5-difluoro-benzoyl)-piperidin-4-yl]-6-fluoro-3-methyl-naphthalen-2-yl}-acetic acid methyl ester (73 mg, 68%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08691993B2 |
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| Source dataset | uspto-grants-2014_04 |
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| ORD ID | ord-04086f2307884129b7705426ab0e8527 |
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| Source note | uspto-grants-2014_04 |
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