Triethylamine → HCID 22724170, compound
Reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([N:8]2[C:13](=[O:14])[C:12]([CH2:15][C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)=[N:11][C:10]3[CH:22]=[CH:23][CH:24]=[N:25][C:9]2=3)[CH:5]=[CH:6][CH:7]=1.C(N(CC)CC)C.[O:33]1[CH:37]=[CH:36][CH:35]=[C:34]1[C:38](Cl)=[O:39].C(=O)(O)[O-].[Na+]>ClCCl.C(OCC)(=O)C>[CH2:15]([C:12]1[C:13](=[O:14])[N:8]([C:4]2[CH:5]=[CH:6][CH:7]=[C:2]([NH:1][C:38]([C:34]3[O:33][CH:37]=[CH:36][CH:35]=3)=[O:39])[CH:3]=2)[C:9]2[N:25]=[CH:24][CH:23]=[CH:22][C:10]=2[N:11]=1)[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1Participants
7
Procedure
To a mixture of 4-(3-aminophenyl)-2-benzyl-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine (150 mg) and triethylamine (0.1 ml) in dichloromethane (4 ml) was added 2-furoyl chloride (0.05 ml). The mixture was stirred at room temperature for 20 minutes, then poured into a mixture of ethyl acetate and aqueous sodium bicarbonate. The organic phase was separated, washed with aqueous sodium bicarbonate and brine, dried over magnesium sulfate and concentrated. The residue was crystallized from ethanol to give 2-benzyl-4-[3-(2-furoylamino)phenyl]-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine (145 mg).
Workup
- customThe organic phase was separated
- washwashed with aqueous sodium bicarbonate and brine
- dry with materialdried over magnesium sulfate
- concentrationconcentrated
- customThe residue was crystallized from ethanol
Sources & evidence
- ORD record
- ord-2f528791feb044e8b7ecc8171d9af24d
- Source dataset
- uspto-grants-2004_04
- Patent number
- US06727245B2
Reaction notes
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