1-Hydroxybenzotriazole → N-methoxy-2-(2-{7-[[(2-methoxyphenyl)sulfonyl](methyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)-N-methylacetamide

HRID 1960491Notes

Reaction equation

HRID 1960491 reaction equation
Cl.[CH3:2][NH:3][O:4][CH3:5].[CH3:6][O:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=1[S:14]([N:17]([CH3:36])[C:18]1[CH:19]=[CH:20][CH:21]=[C:22]2[C:26]=1[NH:25][C:24]([C:27]1[S:28][CH:29]([CH2:32][C:33](O)=[O:34])[CH2:30][N:31]=1)=[CH:23]2)(=[O:16])=[O:15].N1(O)C2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC>CN(C)C=O.C(OCC)(=O)C.C(N(CC)CC)C>[CH3:5][O:4][N:3]([CH3:2])[C:33](=[O:34])[CH2:32][CH:29]1[S:28][C:27]([C:24]2[NH:25][C:26]3[C:22]([CH:23]=2)=[CH:21][CH:20]=[CH:19][C:18]=3[N:17]([S:14]([C:9]2[CH:10]=[CH:11][CH:12]=[CH:13][C:8]=2[O:7][CH3:6])(=[O:15])=[O:16])[CH3:36])=[N:31][CH2:30]1

Participants

8

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 81138Methanamine, N-methoxy-, hydrochloride (1:1)HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 59135901(2-{7-[[(2-methoxyphenyl)sulfonyl](methyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetic acid

Product 1

HCID 59135986N-methoxy-2-(2-{7-[[(2-methoxyphenyl)sulfonyl](methyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)-N-methylacetamideYield 85%

Reagents, catalysts & solvents 3

HCID 6228DimethylformamideSolventHCID 8471TriethylamineSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of N,O-dimethylhydroxylamine hydrochloride (48 mg) in N,N-dimethylformamide (10 mL) was added triethylamine (85 uL) under ice-cooling, and the mixture was stirred for 10 min under ice-cooling. (2-{7-[[(2-Methoxyphenyl)sulfonyl](methyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetic acid (200 mg), 1H-1,2,3-benzotriazol-1-ol (90 mg) and N-[3-(dimethylamino)propyl]-N′-ethylcarbodiimide hydrochloride (130 mg) were added to the mixture, and the mixture was stirred from under ice-cooling to room temperature for 15 hr. The reaction solution was diluted with ethyl acetate, washed with water, aqueous sodium hydrogencarbonate solution and saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The obtained residue was subjected to silica gel column chromatography (ethyl acetate:methanol=100:0-95:5) to give the title compound (180 mg, yield: 85%) as a pale-yellow amorphous solid. MS:489(MH+).

Workup

  1. temperaturecooling
  2. temperaturecooling
  3. stirringthe mixture was stirred from under ice-
  4. washwashed with water, aqueous sodium hydrogencarbonate solution and saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-514c6d29c22e449ea074b39cdb45cb34
Source dataset
uspto-grants-2013_04
Patent number
US08410087B2

Reaction notes

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