1-Hydroxybenzotriazole → HCID 15552330, compound
Reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[CH:12]=[CH:11][N:10]=[CH:9]2)=[CH:4][CH:3]=1.[C:13]1([CH:19]([C:25]2[C:26](=[O:35])[C:27]([CH3:34])=[C:28]([CH3:33])[C:29](=[O:32])[C:30]=2[CH3:31])[CH2:20][CH2:21][C:22](O)=[O:23])[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.Cl.CN(C)CCCN=C=NCC.ON1C2C=CC=CC=2N=N1>CN(C=O)C.C(N(CC)CC)C>[N:8]1([C:5]2[CH:4]=[CH:3][C:2]([NH:1][C:22](=[O:23])[CH2:21][CH2:20][CH:19]([C:13]3[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=3)[C:25]3[C:26](=[O:35])[C:27]([CH3:34])=[C:28]([CH3:33])[C:29](=[O:32])[C:30]=3[CH3:31])=[CH:7][CH:6]=2)[CH:12]=[CH:11][N:10]=[CH:9]1Participants
7
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Procedure
To a solution of 1-(4-aminophenyl)imidazole(0.71 g), 4-phenyl 4-(3,5,6-trimethyl-1,4-benzoquinon-2-yl)butanoic acid(1.25 g), ,1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride(0.85 g) and 1-hydroxybenzotriazole(0.85g) in DMF(8 ml) was added triethylamine(0.7 ml) and the mixture was stirred at room temperature for 20 hours. The reaction mixture was poured into ice water and the precipitate was filtered and dissolved in chloroform-methanol. This solution was washed with brine, dried (MgSO4) and evaporated to dryness. The residue was purified by column chromatography on silica gel (chloroform: methanol=100:3) to obtain the title compound (0.82 g, amorphous).
Workup
- filtrationthe precipitate was filtered
- dissolutiondissolved in chloroform-methanol
- washThis solution was washed with brine
- dry with materialdried (MgSO4)
- customevaporated to dryness
- customThe residue was purified by column chromatography on silica gel (chloroform: methanol=100:3)
Sources & evidence
- ORD record
- ord-b6b0a695a45942e5a9d54c07e604412b
- Source dataset
- uspto-grants-2002_01
- Patent number
- US06342516B1
Reaction notes
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