1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 25166303, compound

HRID 1177918Notes

Reaction equation

HRID 1177918 reaction equation
CCN(C(C)C)C(C)C.Cl.[NH2:11][CH2:12][C:13]([N:15]1[CH2:20][CH2:19][N:18]([C:21](=[O:32])[C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=2[C:28]([F:31])([F:30])[F:29])[CH2:17][CH2:16]1)=[O:14].C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.[NH:54]1[C:62]2[C:57](=[CH:58][CH:59]=[CH:60][CH:61]=2)[C:56]([C:63](O)=[O:64])=[CH:55]1>CN(C=O)C.O>[O:14]=[C:13]([N:15]1[CH2:16][CH2:17][N:18]([C:21](=[O:32])[C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=2[C:28]([F:31])([F:29])[F:30])[CH2:19][CH2:20]1)[CH2:12][NH:11][C:63]([C:56]1[C:57]2[C:62](=[CH:61][CH:60]=[CH:59][CH:58]=2)[NH:54][CH:55]=1)=[O:64]

Participants

8

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 69867Indole-3-Carboxylic AcidHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 669531782-Amino-1-[4-(2-trifluoromethyl-benzoyl)-piperazin-1-yl]-ethanone hydrochloride

Product 1

HCID 25166303HCID 25166303, compoundYield 12.35%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

DIPEA (143 mg, 0.193 mL, 1.11 mmol) was added to a stirred solution of 2-amino-1-[4-(2-trifluoromethyl-benzoyl)-piperazin-1-yl]-ethanone hydrochloride salt (prepared by the method described above) (157 mg, 0.44 mmol) in DMF (2 mL). HOBT (60 mg, 0.44 mmol) and EDCI (85 mg, 0.44 mmol) were then added at room temperature. After 2 minutes, 1H-Indole-3-carboxylic acid (60 mg, 0.37 mmol) was added and the resulting mixture was stirred at room temperature for 4 hrs. Cold water was then added and the product was extracted with EtOAc and the organic layer was washed with brine. The organic phase was dried over Na2SO4 and concentrated under reduced pressure to the residue. The residue was purified by preparative HPLC to afford 21.3 mg (12.35% yield) of 1H-Indole-3-carboxylic acid {2-oxo-2-[4-(2-trifluoromethyl-benzoyl)-piperazin-1-yl]-ethyl}-amide. LCMS Purity: 95.81%. 1H NMR (CDCl3): δ 9.1 (s, 1H), 8.1 (d, 1H), 7.9-7.5 (m, 4H), 7.4-7.1 (m, 4H), 4.4-4.2 (m, 2H), 4.1-3.8 (m, 2H), 3.8-3.4 (m, 4H), 3.4-3.1 (m, 3H).

Workup

  1. customprepared by the method
  2. extractionthe product was extracted with EtOAc
  3. washthe organic layer was washed with brine
  4. dry with materialThe organic phase was dried over Na2SO4
  5. concentrationconcentrated under reduced pressure to the residue
  6. customThe residue was purified by preparative HPLC

Sources & evidence

ORD record
ord-4259760b5cc647c99ee6f197a664bf75
Source dataset
uspto-grants-2010_11
Patent number
US07842696B2

Reaction notes

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