Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | HCID 67442606 | HCID 67442606 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Lithium Hydroxide | HCID 3939 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 67441921 | HCID 67441921 | 0.8% |
Reaction Steps
A mixture of 2-[3-(3,3-dimethyl-6-trifluoromethyl-1,2,3,4-tetrahydro-quinolin-2-yl)-phenylamino]-2-methyl-propionic acid methyl ester (400 mg, 0.95 mmol) in tetrahydrofuran (30 mL), 2M lithium hydroxide in water (15 mL) was stirred at 25° C. for 12 h. The mixture was neutralized with a 3 N aqueous hydrochloric acid solution and extracted with ethyl acetate (2×100 mL), washed with water, dried over anhydrous sodium sulfate and then concentrated in vacuo. Purification by Waters automated flash system (column: Xterra 30 mm×100 mm, sample manager 2767, pump 2525, detector: ZQ mass and UV 2487, solvent system: acetonitrile and 0.1% formic acid in water) afforded 2-[3-(3,3-dimethyl-6-trifluoromethyl-1,2,3,4-tetrahydro-quinolin-2-yl)-phenylamino]-2-methyl-propionic acid (3 mg, 0.7%) as a light yellow oil: LC/MS m/e calcd for C22H25F3N2O2 (M+H)+: 407.45, observed: 407.2.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08586747B2 |
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| Source dataset | uspto-grants-2013_11 |
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| ORD ID | ord-239400a1fd72469f9ff868a7dcf55997 |
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| Source note | uspto-grants-2013_11 |
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