Ammonium Chloride → HCID 70663275, compound

HRID 878274Notes

Reaction equation

HRID 878274 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[CH:12][N:11]=[CH:10][C:9]=2[N:14]([CH3:28])[C:15](=[O:27])[C:16]2[CH:21]=[C:20]([C:22]([F:25])([F:24])[F:23])[CH:19]=[C:18]([SH:26])[CH:17]=2)=[C:4]([O:29][CH3:30])[CH:3]=1.Br[CH2:32][CH2:33][CH2:34][C:35]([OH:37])=[O:36].CCN(C(C)C)C(C)C.[NH4+].[Cl-]>C(#N)C.CCOC(C)=O>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[CH:12][N:11]=[CH:10][C:9]=2[N:14]([CH3:28])[C:15]([C:16]2[CH:17]=[C:18]([S:26][CH2:32][CH2:33][CH2:34][C:35]([OH:37])=[O:36])[CH:19]=[C:20]([C:22]([F:25])([F:24])[F:23])[CH:21]=2)=[O:27])=[C:4]([O:29][CH3:30])[CH:3]=1

Participants

7

Reactant 4

HCID 25517Ammonium ChlorideHCID 758094-Bromobutyric acidHCID 81531Diisopropylethylamine3×HCID 70663556HCID 70663556, compound

Product 1

HCID 70663275HCID 70663275, compound

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a suspension of N-(4-(4-fluoro-2-methoxyphenyl)pyridin-3-yl)-3-mercapto-N-methyl-5-(trifluoromethyl)benzamide (0.05 g, 115 μmol, Example 216, intermediate a) in acetonitrile (1 mL) were added 4-bromobutanoic acid (36.4 mg, 218 μmol) and DIPEA (29.6 mg, 40.0 μL, 229 μmol). After the addition of DIPEA the white suspension turned to a light yellow solution, which was stirred at room temperature for 24 hours before another batch of DIPEA (29.6 mg, 40.0 μL, 229 μmol) was added (white suspension turned into light yellow solution). The reaction mixture was stirred at room temperature for another 20 hours and then poured on saturated aqueous NH4Cl solution and EtOAc and the layers were separated. The aqueous layer was extracted twice with EtOAc. The organic layers were dried over MgSO4, filtered and evaporated. The product was purified by preparative HPLC (Gemini NX column) using a gradient of MeOH:water (containing 0.1% formic acid) (20:80 to 98:2). Colorless solid (0.01 g; 16%). MS (ESI): m/z=523.13 [M+H]+.

Workup

  1. additionwas added (white suspension turned into light yellow solution)
  2. customthe layers were separated
  3. extractionThe aqueous layer was extracted twice with EtOAc
  4. dry with materialThe organic layers were dried over MgSO4
  5. filtrationfiltered
  6. customevaporated
  7. customThe product was purified by preparative HPLC (Gemini NX column)

Sources & evidence

ORD record
ord-f14269bef9d24339ae05576b42862f14
Source dataset
uspto-grants-2015_03
Patent number
US08987307B2

Reaction notes

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