Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | Propylphosphonic anhydride | HCID 111923 | — |
| Reactant | 2-(4-(5-Ethoxy-6-((4-methoxybenzyl)oxy)pyridin-3-yl)-2-fluorophenyl) acetic acid | HCID 90416624 | — |
| Reactant | HCID 90422687 | HCID 90422687 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 90423010 | HCID 90423010 | 41.2% |
Reaction Steps
To a mixture of 2-(4-(5-ethoxy-6-((4-methoxybenzyl)oxy)pyridin-3-yl)-2-fluorophenyl)acetic acid (150 mg, 0.365 mmol) in pyridine (2 mL) were added ethyl 3-(4-amino-2-(trifluoromethyl)phenyl)-2,2-difluoropropanoate (108 mg, 0.365 mmol) and T3P® (EA solvate) (464 mg, 0.729 mmol). The mixture was stirred at 20° C. for 1 h. LCMS and TLC (PE/EA=1:1, Rf=0.5) showed the reaction was finished. The mixture was concentrated and then purified by TLC (PE/EA=1:1, Rf=0.5) to give ethyl 3-(4-(2-(4-(5-ethoxy-6-((4-methoxybenzyl)oxy)pyridin-3-yl)-2-fluorophenyl)acetamido)-2-(trifluoromethyl)phenyl)-2,2-difluoropropanoate (120 mg, 0.150 mmol, 41.2% yield): 1H NMR (400 MHz, CD3OD-d4) δ 8.08-8.02 (m, 1H), 7.94 (d, J=2.0 Hz, 1H), 7.78 (s, 1H), 7.54-7.33 (m, 7H), 6.90 (d, J=8.8 Hz, 2H), 5.35 (s, 2H), 4.26 (q, J=7.3 Hz, 2H), 4.13 (q, J=7.1 Hz, 2H), 3.81 (s, 2H), 3.78 (s, 3H), 3.63-3.52 (m, 2H), 1.41 (t, J=7.1 Hz, 3H), 1.25 (t, J=7.2 Hz, 3H); ES-LCMS m/z 691 (M+H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09382238B2 |
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| Source dataset | uspto-grants-2016_07 |
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| ORD ID | ord-877013d75a5c45609233445867a9ca0b |
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| Source note | uspto-grants-2016_07 |
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