Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Pyridine | HCID 1049 | — |
| Reactant | Methanesulfonyl chloride | HCID 31297 | — |
| Reactant | 5-{2-[5-Trifluoromethyl-2-benzyloxyphenyl]cyclopent-1-enyl}-3-aminobenzoic acid ethyl ester | HCID 58887623 | — |
| Catalyst | 4-(Dimethylamino)pyridine | HCID 14284 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 58887655 | HCID 58887655 | 81.9% |
Reaction Steps
5-{2-[5-trifluoromethyl-2-(benzyloxy)phenyl]cyclopent-1-enyl)-3-aminobenzoic acid ethyl ester (60 mg, 0.12 mmol), pyridine (11 μL, 0.137 mmol), methane sulphonyl chloride (11 μL, 0.137 mmol), and a catalytic amount of DMAP in 2 mL of dichloromethane were stirred at room temperature for 2 hrs. The reaction mixture was poured into water and extracted with ethyl acetate (3×10 mL). The combined organic layers were dried (MgSO4), filtered and concentrated. Purification was carried out on a SPE using iso-hexane containing a gradient of ethyl acetate (5–30%) to give the required product as yellow oil (55 mg, 78%). 1H NMR (CDCl3):1.32 (3H,t,J=7.1), 2.06–2.13 (2H,m), 2.60(3H,s), 2.88 (2H,t,J=7.4), 2.92–296(2H,m), 4.31 (2H,q,J=7.1), 5.11 (2H,s), 6.42 (1H,s), 7.04 (1H,d,J=8.6), 7.11 (1H,s), 7.23–7.30 (5H,m), 7.33(1H,d), 7.54 (1H,s), 7.66 (1H,s). LC/MS[MH−]=558 Rt=4.11.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07232821B2 |
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| Source dataset | uspto-grants-2007_06 |
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| ORD ID | ord-944830cbdf5e4a82b4168a35c54b4b72 |
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| Source note | uspto-grants-2007_06 |
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