Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | (Pyridin-4-yl)boronic acid | HCID 2734379 | — |
| Reactant | HCID 67498417 | HCID 67498417 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Solvent | Dimethylacetamide | HCID 31374 | — |
| Product | HCID 46869361 | HCID 46869361 | 16% |
Reaction Steps
To a 25 ml of flask was added ethyl 2-((S)-1-(3-bromophenylamino)-1-oxo-3-phenylpropan-2-ylamino)acetate 107.1.B (165 mg, 0.41 mmole), pyridine-4-yl boronic acid (53 mg, 0.43 mmole), tetrakis(triphenylphosphine)palladium (94 mg, 0.081 mmole), potassium carbonate (112 mg, 0.81 mmole), 0.2 ml of water and 2 ml of N,N-dimethylacetamide. The reaction mixture was stirred at 80° C. for 5 hours. Then, the reaction mixture was diluted with ethyl acetate. The organic layer was washed with water and brine, and dried over anhydrous sodium sulfate. After concentration in vacuo, the residue was chromatographed on silica gel to give 107.1.C (26 mg, 16% yield). 1H NMR (400 MHz, CDCl3) δ ppm 9.53 (s, 1H), 8.67 (d, J=5.8 Hz, 2H), 8.01 (s, 1H), 7.70-7.27 (m, 10H), 4.17-4.10 (m, 2H), 3.50 (dd, J=9.0, 4.3 Hz, 1H), 3.36 (s, 2H,), 3.35 (dd, J=14.1, 4.3 Hz, 1H), 2.92 (dd, J=14.1, 9.0 Hz, 1H), 1.99 (brs, 1H), 1.22 (t, J=7.2 Hz, 3H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08785468B2 |
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| Source dataset | uspto-grants-2014_07 |
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| ORD ID | ord-823a2af474ec4cf783729838c3376099 |
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| Source note | uspto-grants-2014_07 |
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