Acetonitrile → (S)-3-[4-(2-amino-6-{(S)-2,2,2-trifluoro-1-[4-(2-fluoro-pyridin-4-yl)-phenyl]-ethoxy}-pyrimidin-4-yl)-phenyl]-2-tert-butoxycarbonylamino-propionic acid

HRID 1620858Notes

Reaction equation

HRID 1620858 reaction equation
[NH2:1][C:2]1[N:7]=[C:6]([C:8]2[CH:13]=[CH:12][C:11]([CH2:14][C@H:15]([NH:19][C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[C:16]([OH:18])=[O:17])=[CH:10][CH:9]=2)[CH:5]=[C:4]([O:27][C@@H:28]([C:33]2[CH:38]=[CH:37][C:36](Br)=[CH:35][CH:34]=2)[C:29]([F:32])([F:31])[F:30])[N:3]=1.[F:40][C:41]1[CH:46]=[C:45](B(O)O)[CH:44]=[CH:43][N:42]=1.C(#N)C.C(=O)([O-])[O-].[Na+].[Na+]>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.O>[NH2:1][C:2]1[N:7]=[C:6]([C:8]2[CH:13]=[CH:12][C:11]([CH2:14][C@H:15]([NH:19][C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[C:16]([OH:18])=[O:17])=[CH:10][CH:9]=2)[CH:5]=[C:4]([O:27][C@@H:28]([C:33]2[CH:38]=[CH:37][C:36]([C:45]3[CH:44]=[CH:43][N:42]=[C:41]([F:40])[CH:46]=3)=[CH:35][CH:34]=2)[C:29]([F:32])([F:31])[F:30])[N:3]=1

Participants

7

Reactant 4

HCID 6342AcetonitrileHCID 10340Sodium CarbonateHCID 27833962-Fluoropyridine-4-boronic acidHCID 66742588(S)-3-(4-{2-amino-6-[(S)-1-(4-bromo-phenyl)-2,2,2-trifluoro-ethoxy]-pyrimidin-4-yl}-phenyl)-2-tert-butoxycarbonylamino-propionic acid

Product 1

HCID 66749888(S)-3-[4-(2-amino-6-{(S)-2,2,2-trifluoro-1-[4-(2-fluoro-pyridin-4-yl)-phenyl]-ethoxy}-pyrimidin-4-yl)-phenyl]-2-tert-butoxycarbonylamino-propionic acidYield 48.5%

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalystHCID 962WaterSolvent

Conditions

Temperature
150 °C

Procedure

A microwave vial (2 ml) was charged with (S)-3-(4-{2-amino-6-[(S)-1-(4-bromo-phenyl)-2,2,2-trifluoro-ethoxy]-pyrimidin-4-yl}-phenyl)-2-tert-butoxycarbonylamino-propionic acid (139 mg, 0.23 mmol), 2-fluoropyridine-4-boronic acid (40 mg, 0.27 mmol) 1 ml of acetonitrile, and 0.7 ml of water. To this mixture, 0.4 ml of aqueous sodium carbonate (1M) was added, followed by 14 mg (5 mol %) of dichlorobis(triphenylphosphine)-palladium(II). The reaction vessel was sealed and heated to 150° C. for 5 minutes with microwave irradiation. After cooling, the reaction mixture was evaporated to dryness, and the residue was dissolved in 2.5 ml of methanol. The product was purified with Preparative HPLC to give 70 mg of (S)-3-[4-(2-amino-6-{(S)-2,2,2-trifluoro-1-[4-(2-fluoro-pyridin-4-yl)-phenyl]-ethoxy}-pyrimidin-4-yl)-phenyl]-2-tert-butoxycarbonylamino-propionic acid.

Workup

  1. customThe reaction vessel was sealed
  2. temperatureAfter cooling
  3. customthe reaction mixture was evaporated to dryness
  4. dissolutionthe residue was dissolved in 2.5 ml of methanol
  5. customThe product was purified with Preparative HPLC

Sources & evidence

ORD record
ord-bf72e7b216384225bb0bf220dfd14a58
Source dataset
uspto-grants-2014_07
Patent number
US08772482B2

Reaction notes

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