1-Hydroxybenzotriazole → HCID 57901638, compound
Reaction equation
[CH3:1][N:2]([S:15]([C:18]1[S:19][CH:20]=[CH:21][CH:22]=1)(=[O:17])=[O:16])[C:3]1[CH:4]=[CH:5][CH:6]=[C:7]2[C:11]=1[NH:10][C:9]([C:12](O)=[O:13])=[CH:8]2.Cl.[C:24]([S:43][CH2:44][CH2:45][NH2:46])([C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1)([C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1)[C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1.N1(O)C2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC>O.CN(C)C=O.C(N(CC)CC)C>[CH3:1][N:2]([S:15]([C:18]1[S:19][CH:20]=[CH:21][CH:22]=1)(=[O:17])=[O:16])[C:3]1[CH:4]=[CH:5][CH:6]=[C:7]2[C:11]=1[NH:10][C:9]([C:12]([NH:46][CH2:45][CH2:44][S:43][C:24]([C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1)([C:25]1[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=1)[C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1)=[O:13])=[CH:8]2Participants
8
Reactant 4
Product 1
Reagents, catalysts & solvents 3
Procedure
To a mixture of 7-[methyl(2-thienylsulfonyl)amino]-1H-indole-2-carboxylic acid (0.31 g), 2-(tritylthio)ethylamine hydrochloride (0.33 g), 1H-1,2,3-benzotriazol-1-ol (0.15 g), triethylamine (0.15 mL) and N,N-dimethylformamide (8 mL) was added N-[3-(dimethylamino)propyl]-N′-ethylcarbodiimide hydrochloride (0.21 g) at 0° C., and the mixture was stirred at room temperature overnight. Water was added to the reaction mixture, and the obtained crystals were filtrated, washed with water and dried. The obtained crystals were subjected to silica gel column chromatography and the title compound (0.54 g, yield 92%) was obtained as colorless crystals from a fraction eluted with ethyl acetate. melting point>188° C. (decomposition).
Workup
- filtrationthe obtained crystals were filtrated
- washwashed with water
- customdried
Sources & evidence
- ORD record
- ord-784e7abbb16d4ea59a6eae9da0473e3d
- Source dataset
- uspto-grants-2015_02
- Patent number
- US08957070B2
Reaction notes
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