Acetonitrile → 2-Amino-3-{4-[6-(2,2,2-trifluoro-1-phenyl-ethoxy)-pyrimidin-4-yl]-phenyl}-propionic acid

HRID 1958586Notes

Reaction equation

Cl[C:2]1[CH:7]=[C:6]([O:8][CH:9]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C:10]([F:13])([F:12])[F:11])[N:5]=[CH:4][N:3]=1.B([C:23]1[CH:34]=[CH:33][C:26]([CH2:27][C@@H:28]([C:30]([OH:32])=[O:31])[NH2:29])=[CH:25][CH:24]=1)(O)O.C(#N)C.C(=O)([O-])[O-].[Na+].[Na+]>O>[NH2:29][CH:28]([CH2:27][C:26]1[CH:33]=[CH:34][C:23]([C:2]2[CH:7]=[C:6]([O:8][CH:9]([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)[C:10]([F:13])([F:12])[F:11])[N:5]=[CH:4][N:3]=2)=[CH:24][CH:25]=1)[C:30]([OH:32])=[O:31]

Participants

Conditions

Temperature: 120 °C

Procedure

An Emrys process vial (2-5 ml) for microwave was charged with 4-chloro-6-(2,2,2-trifluoro-1-phenyl-ethoxy)-pyrimidine (30 mg, 0.11 mmol), 4-borono-L-phenylalanine (32 mg, 0.16 mmol), 1 ml of acetonitrile and 0.6 ml of water. Aqueous sodium carbonate (0.42 ml, 1M) was added to above solution followed by 10 mol percent of POPd2 (dihydrogen di-μ-chlorodichlorobis(di-tert-butylphosphinito-κP) dipalladate. The reaction vessel was sealed and heated to 120° C. for 30 minutes by microwave. After cooling, the reaction mixture was evaporated to dryness. The residue was dissolved in 2.5 ml of methanol, and the product was purified with Prep-LC to give 4.8 mg of 2-amino-3-{4-[6-(2,2,2-trifluoro-1phenyl-ethoxy)-pyrimidin-4-yl]-phenyl}-propionic acid, yield 11%. 1H-NMR (400 MHz, CD3OD): δ 3.20(m, 1H), 3.40(m, 1H), 4.25(t, 1H), 6.82(dd, 1H), 7.43(m, 5H), 7.57(s, 1H), 7.60(m, 2H),8.10(d, 2H),8.75(s, 1H).

Workup

customThe reaction vessel was sealed
temperatureAfter cooling
customthe reaction mixture was evaporated to dryness
dissolutionThe residue was dissolved in 2.5 ml of methanol
customthe product was purified with Prep-LC

Sources & evidence

ORD record: ord-1490be74769546f6ad6ff7e14617d34d
Source dataset: uspto-grants-2013_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08410121B2

Reaction notes

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