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Dimethylformamide → 2-{2-[7-[methyl(2-thienylsulfonyl)amino]-5-(trifluoromethoxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}acetamide

HRID 1994960
Notes
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Reaction equation

HRID 1994960 reaction equation
[CH3:1][N:2]([S:26]([C:29]1[S:30][CH:31]=[CH:32][CH:33]=1)(=[O:28])=[O:27])[C:3]1[CH:4]=[C:5]([O:21][C:22]([F:25])([F:24])[F:23])[CH:6]=[C:7]2[C:11]=1[NH:10][C:9]([C:12]1[S:13][CH:14]([CH2:17][C:18]([OH:20])=O)[CH2:15][N:16]=1)=[CH:8]2.Cl.C[N:36](C)CCCN=C=NCC.CN(C)C=O>O>[CH3:1][N:2]([S:26]([C:29]1[S:30][CH:31]=[CH:32][CH:33]=1)(=[O:28])=[O:27])[C:3]1[CH:4]=[C:5]([O:21][C:22]([F:24])([F:25])[F:23])[CH:6]=[C:7]2[C:11]=1[NH:10][C:9]([C:12]1[S:13][CH:14]([CH2:17][C:18]([NH2:36])=[O:20])[CH2:15][N:16]=1)=[CH:8]2
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 6228DimethylformamideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride2×HCID 57476346{2-[7-[methyl(2-thienylsulfonyl)amino]-5-(trifluoromethoxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}acetic acid

Product 1

HCID 248995172-{2-[7-[methyl(2-thienylsulfonyl)amino]-5-(trifluoromethoxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}acetamideYield 43%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A mixture of {2-[7-[methyl(2-thienylsulfonyl)amino]-5-(trifluoromethoxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}acetic acid (210 mg), 1H-1,2,3-benzotriazol-1-ol-ammonia complex (90 mg), N-[3-(dimethylamino)propyl]-N′-ethylcarbodiimide hydrochloride (120 mg) and N,N-dimethylformamide (10 mL) was stirred at room temperature for 15 hr. 1H-1,2,3-Benzotriazol-1-ol-ammonia complex (150 mg) and N-[3-(dimethylamino)propyl]-N′-ethylcarbodiimide hydrochloride (190 mg) were added to the reaction mixture, and the mixture was further stirred at room temperature for 6 hr. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed successively with aqueous citric acid solution, saturated aqueous sodium hydrogencarbonate and saturated brine, dried (MgSO4), and concentrated. The residue was purified by preparative HPLC to give the title compound (90 mg, yield 43%) as pale-yellow crystals. The crystals were recrystallized from ethyl acetate-hexane to give pale-yellow prism crystals. melting point 186-187° C. MS: 519 (MH+).

Workup

  1. stirringthe mixture was further stirred at room temperature for 6 hr
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe ethyl acetate layer was washed successively with aqueous citric acid solution, saturated aqueous sodium hydrogencarbonate and saturated brine
  4. dry with materialdried (MgSO4)
  5. concentrationconcentrated
  6. customThe residue was purified by preparative HPLC

Sources & evidence

ORD record
ord-faf5a739ebf94b48bde6ec84ad0974e5
Source dataset
uspto-grants-2010_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07652133B2

Reaction notes

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