Ammonium Chloride → HCID 57736435, compound

HRID 1641701Notes

Reaction equation

HRID 1641701 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([S:8][CH:9]([C:20]2[C:25]([F:26])=[CH:24][CH:23]=[C:22]([F:27])[C:21]=2[F:28])[C:10]2[C:11]([CH3:19])=[CH:12][C:13]([C:16](O)=[O:17])=[N:14][CH:15]=2)=[CH:4][CH:3]=1.F[P-](F)(F)(F)(F)F.[N:36]1(O[P+](N2CCCC2)(N2CCCC2)N2CCCC2)C2C=CC=CC=2N=N1.ON1C2C=CC=CC=2N=N1.[Cl-].[NH4+].C(N(C(C)C)C(C)C)C>CN(C)C=O.C(OCC)(=O)C>[F:1][C:2]1[CH:3]=[CH:4][C:5]([S:8][CH:9]([C:20]2[C:25]([F:26])=[CH:24][CH:23]=[C:22]([F:27])[C:21]=2[F:28])[C:10]2[C:11]([CH3:19])=[CH:12][C:13]([C:16]([NH2:36])=[O:17])=[N:14][CH:15]=2)=[CH:6][CH:7]=1

Participants

8

Reactant 5

HCID 25517Ammonium ChlorideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 2724699PyBOPHCID 577364725-[[(4-Fluorophenyl)thio](2,3,6-trifluorophenyl)methyl]-4-methylpyridine-2-carboxylic Acid

Product 1

HCID 57736435HCID 57736435, compoundYield 96%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 5-[[(4-fluorophenyl)thio](2,3,6-trifluorophenyl)methyl]-4-m ethylpyridine-2-carboxylic acid (407 mg, 1.00 mmol) obtained in Example 34 in N,N-dimethylformamide (10 ml), (benzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate (781 mg, 1.50 mmol), 1-hydroxybenzotriazole (203 mg, 1.50 mmol), ammonium chloride (107 mg, 2.00 mmol), and N-ethyldiisopropylamine (0.697 ml, 4.00 mmol) were added in an argon atmosphere at room temperature. After stirring for 16 hours at room temperature, ethyl acetate was added to the reaction mixture, and the resulting mixture was washed with 0.5 N hydrochloric acid. The organic layer was dried over anhydrous sodium sulfate and filtered, then the filtrate was concentrated under reduced pressure, and the resulting residue was subjected to flash silica gel chromatography. The fraction obtained from an elution with hexane:ethyl acetate=2:1 was concentrated under reduced pressure to obtain the title compound (392 mg, 0.96 mmol, 96%) as a white solid.

Workup

  1. washthe resulting mixture was washed with 0.5 N hydrochloric acid
  2. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  3. filtrationfiltered
  4. concentrationthe filtrate was concentrated under reduced pressure
  5. customThe fraction obtained from an elution with hexane
  6. concentrationethyl acetate=2:1 was concentrated under reduced pressure

Sources & evidence

ORD record
ord-4ab6a709998d452da643d37e79799994
Source dataset
uspto-grants-2012_02
Patent number
US08114886B2

Reaction notes

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