Dimethylformamide → HCID 23000187, compound
Reaction equation
[CH2:1]([O:8][C:9]1[C:10](=[O:27])[N:11]([CH2:19][C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[C:12]([CH3:18])=[CH:13][C:14]=1[C:15](O)=[O:16])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CN(C(ON1N=NC2[CH:39]=[CH:40][CH:41]=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)[CH:55]([CH3:57])[CH3:56].[CH3:61][N:62]([CH:64]=O)C>>[CH2:1]([O:8][C:9]1[C:10](=[O:27])[N:11]([CH2:19][C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[C:12]([CH3:18])=[CH:13][C:14]=1[C:15]([N:62]([CH2:64][CH:40]([CH3:39])[CH3:41])[CH2:61][CH:55]([CH3:57])[CH3:56])=[O:16])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1Participants
5
Procedure
To a stirred solution of 3-benzyloxy-4-carboxy-6-methyl-1-tert-butyloxycarbonylmethyl-2-pyridinone from step 3 above (0.91 g, 2.3 mmol) in DMF (6 mL) was added dilsobutylamine (0.48 mL, 2.8 mmol), HATU (1.76 g, 4.6 mmol), and DIEA (0.45 mL, 2.6 mmol). The resulting solution was stirred at ambient temperature for 18 h. The solvents were removed in vacuo and the residue was purified by flash column chromatography using a gradient elution of 25-50% EtOAc:hexanes to give the title compound as an oil (0.80 g; HPLC RT 24.80 min, method B).
Workup
- customThe solvents were removed in vacuo
- customthe residue was purified by flash column chromatography
- washa gradient elution of 25-50% EtOAc
Sources & evidence
- ORD record
- ord-0f42f5a908884eefaf27c6ca9362f030
- Source dataset
- uspto-grants-2003_08
- Patent number
- US06610692B1
Reaction notes
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