Pyridine → HCID 59454502, compound

HRID 1097524Notes

Reaction equation

HRID 1097524 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([CH:21]=[CH:22][CH:23]=1)[O:5][C:6]1[CH:18]=[CH:17][C:9]2[N:10]=[C:11]([NH:13][C:14](=[O:16])[CH3:15])[S:12][C:8]=2[C:7]=1[C:19]#[N:20].[F:24][C:25]([F:37])([F:36])[C:26]1[CH:27]=[C:28]([CH2:32][C:33](O)=[O:34])[CH:29]=[CH:30][CH:31]=1.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.N1C=CC=CC=1>C(OCC)(=O)C>[C:14]([NH:13][C:11]1[S:12][C:8]2[C:7]([C:19]#[N:20])=[C:6]([O:5][C:4]3[CH:3]=[C:2]([NH:1][C:33](=[O:34])[CH2:32][C:28]4[CH:29]=[CH:30][CH:31]=[C:26]([C:25]([F:36])([F:24])[F:37])[CH:27]=4)[CH:23]=[CH:22][CH:21]=3)[CH:18]=[CH:17][C:9]=2[N:10]=1)(=[O:16])[CH3:15]

Participants

6

Reactant 4

HCID 1049PyridineHCID 676953-(Trifluoromethyl)benzeneacetic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 86644686N-[6-(3-aminophenoxy)-7-cyano-1,3-benzothiazol-2-yl]acetamide

Product 1

HCID 59454502HCID 59454502, compoundYield 69.2%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
85 °C

Procedure

A mixture of N-[6-(3-aminophenoxy)-7-cyano-1,3-benzothiazol-2-yl]acetamide (141 mg, 0.436 mmol) produced in Example 12(ii), [3-(trifluoromethyl)phenyl]acetic acid (176 mg, 0.872 mmol), O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (331 mg, 0.872 mmol) and pyridine (3 mL) was stirred at 85° C. for 12 hr. The reaction mixture was cooled to room temperature, diluted with ethyl acetate (5 mL), washed successively with saturated aqueous ammonium chloride solution (5 mL), saturated aqueous sodium hydrogen carbonate solution (5 ml) and saturated brine (5 mL), and dried over anhydrous sodium sulfate. Insoluble material was filtered off, and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/n-hexane=40/60→100/0), and the obtained solution was concentrated under reduced pressure. The residue was recrystallized from ethyl acetate/n-heptane (1/1) to give the title compound (154 mg, 69%) as a white powder.

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. washwashed successively with saturated aqueous ammonium chloride solution (5 mL), saturated aqueous sodium hydrogen carbonate solution (5 ml) and saturated brine (5 mL)
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationInsoluble material was filtered off
  5. concentrationthe filtrate was concentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (ethyl acetate/n-hexane=40/60→100/0)
  7. concentrationthe obtained solution was concentrated under reduced pressure
  8. customThe residue was recrystallized from ethyl acetate/n-heptane (1/1)

Sources & evidence

ORD record
ord-3a314f5f0c6c45be8b8084b985284ad6
Source dataset
uspto-grants-2012_03
Patent number
US08143258B2

Reaction notes

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