Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 1-Phenethylamine | HCID 7408 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | HCID 59853078 | HCID 59853078 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 59852962 | HCID 59852962 | 37% |
Reaction Steps
To a homogeneous mixture of 3-(4-(2-carbamoylpyridin-4-yloxy)-2,5-difluorophenylamino)-3-oxopropanoic acid (89 mg, 0.25 mmol) and (±)-1-phenyl-ethanamine (Aldrich, 0.05 mL, 0.38 mmol) in DMF (3 mL) was added DIPEA (0.07 mL, 0.38 mmol) and O-benzotriazol-1-yl-N,N,N′,N′-bis(tetramethylene)uranium hexafluorophosphate (TBTU) (121 mg, 0.38 mmol). The resulting solution was stirred for 15 hours before being quenched with 10% LiCl (aq). The mixture was partitioned between EtOAc and 10% LiCl (aq), the layers separated, and the aqueous layer extracted with EtOAc. The combined organic layers were washed twice with 10% LiCl (aq), then concentrated in vacuo. The residue was purified by silica gel chromatography (eluting with 1:3 hexane/EtOAc) and the appropriate fractions were concentrated in vacuo to afford the title compound (42 mg, 37%). HRMS(ESI+), 455.1532 (M+H)+ calcd., 455.1528 (M+H)+ found.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07459562B2 |
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| Source dataset | uspto-grants-2008_12 |
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| ORD ID | ord-3da9616cb07249edb972044e8707f837 |
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| Source note | uspto-grants-2008_12 |
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