1-Hydroxybenzotriazole → HCID 57901691, compound
Reaction equation
[S:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[S:6]([NH:9][C:10]1[CH:11]=[CH:12][CH:13]=[C:14]2[C:18]=1[NH:17][C:16]([C:19]([OH:21])=O)=[CH:15]2)(=[O:8])=[O:7].[CH2:22]([S:29][C:30]([CH3:34])([CH3:33])[CH2:31][NH2:32])[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1.N1(O)C2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC>O.CN(C)C=O>[CH2:22]([S:29][C:30]([CH3:34])([CH3:33])[CH2:31][NH:32][C:19]([C:16]1[NH:17][C:18]2[C:14]([CH:15]=1)=[CH:13][CH:12]=[CH:11][C:10]=2[NH:9][S:6]([C:2]1[S:1][CH:5]=[CH:4][CH:3]=1)(=[O:7])=[O:8])=[O:21])[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Procedure
To a mixture of 7-[(2-thienylsulfonyl)amino]-1H-indole-2-carboxylic acid (0.70 g), 2-(benzylthio)-2-methylpropylamine (0.47 g), 1H-1,2,3-benzotriazol-1-ol (0.35 g) and N,N-dimethylformamide (15 mL) was added N-[3-(dimethylamino)propyl]-N′-ethylcarbodiimide hydrochloride (0.50 g) at 0° C., and the mixture was stirred at room temperature overnight. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO4) and concentrated. The residue was subjected to silica gel column chromatography and the title compound (0.86 g, yield 77%) was obtained as yellow crystals from a fraction eluted with ethyl acetate-hexane (1:9-42:3, volume ratio). melting point 170-171° C.
Workup
- extractionthe mixture was extracted with ethyl acetate
- washThe ethyl acetate layer was washed with saturated brine
- dry with materialdried (MgSO4)
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-e1ad2fdadb8f4ed291e922587f2cd91d
- Source dataset
- uspto-grants-2015_02
- Patent number
- US08957070B2
Reaction notes
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