2-Aminothiazole → HCID 57901677, compound

HRID 1851465Notes

Reaction equation

HRID 1851465 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].[NH2:22][C:23]1[S:24][CH:25]=[CH:26][N:27]=1.C(N(C(C)C)C(C)C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>C(OCC)(=O)C.CN(C)C=O>[S:24]1[CH:25]=[CH:26][N:27]=[C:23]1[NH:22][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]

Participants

7

Reactant 4

HCID 21552-AminothiazoleHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 57476168HCID 57476168, compound

Product 1

HCID 57901677HCID 57901677, compoundYield 78.5%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
60 °C

Procedure

A mixture of 7-[(2-thienylsulfonyl)amino]-1H-indole-2-carboxylic acid (200 mg), 2-aminothiazole (75 mg), ethyldiisopropylamine (0.16 mL), 0-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (354 mg) and N,N-dimethylformamide (8 mL) was stirred at 60° C. for 18 hr. The reaction mixture was diluted with ethyl acetate, washed with aqueous citric acid solution, 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), and the obtained crystals were washed with ethyl acetate-hexane to give the title compound (197 mg, yield 78%) as pale-yellow crystals. melting point 300-302° C. (decomposition).

Workup

  1. washwashed with aqueous citric acid solution, aqueous sodium hydrogencarbonate solution and saturated brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. concentrationconcentrated under reduced pressure
  4. washthe obtained crystals were washed with ethyl acetate-hexane

Sources & evidence

ORD record
ord-494db5371ecf4665b3c2576e55fb8956
Source dataset
uspto-grants-2015_02
Patent number
US08957070B2

Reaction notes

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