Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 2-Hydroxyisobutyric acid | HCID 11671 | — |
| Reactant | 1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide | HCID 15908 | — |
| Reactant | 1-Hydroxybenzotriazole | HCID 75771 | — |
| Reactant | HCID 118431685 | HCID 118431685 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 118432023 | HCID 118432023 | 28.1% |
Reaction Steps
To 1-(2-chloro-phenyl)-5-[4-(piperazin-1-yl)-phenyl]-3-[di-(trifluoromethyl)-hydroxy-methyl]-4,5-dihydro-1H-pyrazole hydrochloride (30.0 mg, 0.06 mmol) prepared in Step 1 of Example 312, were added 2-hydroxyisobutyric acid (7.0 mg, 0.07 mmol), dichloromethane (1.0 mL), HOBT (15.0 mg, 0.11 mmol), EDAC (21.0 mg, 0.11 mmol), and triethylamine (23.0 uL, 0.17 mmol). The reaction mixture was stirred at room temperature for 12 hours, washed with distilled water, 1N hydrochloride, a saturated solution of sodium hydrogen carbonate, and brine, dried on anhydrous magnesium sulfate, and then concentrated under reduced pressure to give a yellow liquid residue. The resulting residue was purified by silica gel column chromatography (eluent: ethyl acetate/n-hexane=1/1) to give 10.0 mg of the titled compound as a pale yellow liquid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09376420B2 |
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| Source dataset | uspto-grants-2016_06 |
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| ORD ID | ord-2cca1c73e96e4a589fa70819db68c49d |
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| Source note | uspto-grants-2016_06 |
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