Sodium hydride → HCID 86619878, compound

HRID 1024897Notes

Reaction equation

Cl[C:2]1[CH:7]=[C:6]([Cl:8])[N:5]=[C:4]([S:9][CH2:10][C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([F:17])[C:12]=2[F:18])[N:3]=1.[OH:19][C@@H:20]1[CH2:24][O:23][N:22]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:21]1.[H-].[Na+]>C1COCC1>[Cl:8][C:6]1[N:5]=[C:4]([S:9][CH2:10][C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([F:17])[C:12]=2[F:18])[N:3]=[C:2]([O:19][C@@H:20]2[CH2:24][O:23][N:22]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:21]2)[CH:7]=1

Participants

Conditions

Temperature: 60 °C

Procedure

To a stirred solution of 4,6-Dichloro-2-[(2,3-difluorobenzyl)thio]pyrimidine (the product of Example 1, step ii) (0.25 g) and 1,1-dimethylethyl (S)-4-hydroxyisoxazolidine-2-carboxylate (0.16 g) in dry THF (5 mL) was added 60% Sodium hydride (0.034 g) over 5 min. The reaction mixture was stirred and heated at 60° C. for 7 days, 1120 was added and the solvents were partially evaporated. The residue was extracted with EtOAc which was washed with H2O, dried (MgSO4) and the solvent evaporated under reduced pressure. The residue was purified by flash chromatography on silica gel, eluting with Et2O/iso-hexane (1:9) to give the subtitle compound as a gum. Yield: 0.15 g.

Workup

addition1120 was added
customthe solvents were partially evaporated
extractionThe residue was extracted with EtOAc which
washwas washed with H2O
dry with materialdried (MgSO4)
customthe solvent evaporated under reduced pressure
customThe residue was purified by flash chromatography on silica gel
washeluting with Et2O/iso-hexane (1:9)

Sources & evidence

ORD record: ord-4edeab0830ab4368940e301535cf490a
Source dataset: uspto-grants-2014_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08722883B2

Reaction notes

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