Diisopropylethylamine → N-[4-Fluoropyrimidin-2-yl]-N-methylglycine, methyl ester
Reaction equation
F[C:2]1[N:7]=[C:6]([F:8])[CH:5]=[CH:4][N:3]=1.Cl.[CH3:10][O:11][C:12](=[O:16])[CH2:13][NH:14][CH3:15].C(N(CC)C(C)C)(C)C>CCCC(C)C>[F:8][C:6]1[CH:5]=[CH:4][N:3]=[C:2]([N:14]([CH3:15])[CH2:13][C:12]([O:11][CH3:10])=[O:16])[N:7]=1Participants
5
Procedure
To a solution of 2,4-difluoropyrimidine (J.Heterocyclic Chem. 1985, 22, 149) (4.48 g) in isohexane (50 ml) at 0° C. was added sarcosine methyl ester hydrochloride (5.39 g) followed by N,N-diisopropylethylamine (13.45 ml). After 5 minutes, the ice bath was removed and the reaction mixture allowed to stir at room temperature for 3 hours. The solvents were evaporated under reduced pressure and the residue purified by chromatography eluting with ethyl acetate/isohexane mixtures. The first and minor component of the mixture to be eluted was the subtitle compound. Yield 0.68 g.
Workup
- customthe ice bath was removed
- customThe solvents were evaporated under reduced pressure
- customthe residue purified by chromatography
- washeluting with ethyl acetate/isohexane
- washThe first and minor component of the mixture to be eluted
Sources & evidence
- ORD record
- ord-cce0d260c79748ba8a0254c7f30ce267
- Source dataset
- uspto-grants-2000_08
- Patent number
- US06107297
Reaction notes
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