Dimethylformamide → ethyl 1-[(2-{7-[methyl(pyridin-2-ylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)methyl]-1H-imidazole-2-carboxylate

HRID 1995003Notes

Reaction equation

CS(O[CH2:6][CH:7]1[S:11][C:10]([C:12]2[NH:13][C:14]3[C:19]([CH:20]=2)=[CH:18][CH:17]=[CH:16][C:15]=3[N:21]([CH3:31])[S:22]([C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][N:26]=2)(=[O:24])=[O:23])=[N:9][CH2:8]1)(=O)=O.[NH:32]1[CH:36]=[CH:35][N:34]=[C:33]1[C:37]([O:39][CH2:40][CH3:41])=[O:38].C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[CH3:31][N:21]([S:22]([C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][N:26]=1)(=[O:24])=[O:23])[C:15]1[CH:16]=[CH:17][CH:18]=[C:19]2[C:14]=1[NH:13][C:12]([C:10]1[S:11][CH:7]([CH2:6][N:32]3[CH:36]=[CH:35][N:34]=[C:33]3[C:37]([O:39][CH2:40][CH3:41])=[O:38])[CH2:8][N:9]=1)=[CH:20]2

Participants

Conditions

Temperature: 60 °C

Procedure

A mixture of (2-{7-[methyl(pyridin-2-ylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)methyl methanesulfonate (250 mg), ethyl 1H-imidazole-2-carboxylate (146 mg), potassium carbonate (144 mg) and N,N-dimethylformamide (5 mL) was stirred at 60° C. for 4.5 hr. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with water and saturated brine, dried over magnesium sulfate, and filtrated, and the filtrate was concentrated under reduced pressure. The residue was silica gel column chromatography (ethyl acetate:hexane=15:85-100:0) to give the title compound (227 mg, yield 83%) as a orange oil.

Workup

extractionthe mixture was extracted with ethyl acetate
washThe organic layer was washed successively with water and saturated brine
dry with materialdried over magnesium sulfate
filtrationfiltrated
concentrationthe filtrate was concentrated under reduced pressure

Sources & evidence

ORD record: ord-be311d7dd64748f58c9b30f29cd875aa
Source dataset: uspto-grants-2010_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07652133B2

Reaction notes

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