1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → Biphenyl-4-carboxylic acid methyl-{2-oxo-2-[4-(2-trifluoromethyl-benzoyl)-piperazin-1-yl]-ethyl}-amide

HRID 1177995

Reaction equation

HRID 1177995 reaction equation
CCN(C(C)C)C(C)C.[C:10]1([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[CH:15]=[CH:14][C:13]([C:16]([N:18]([CH2:20][C:21]([OH:23])=O)[CH3:19])=[O:17])=[CH:12][CH:11]=1.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl.[N:52]1([C:58]([C:60]2[CH:65]=[CH:64][CH:63]=[CH:62][C:61]=2[C:66]([F:69])([F:68])[F:67])=[O:59])[CH2:57][CH2:56][NH:55][CH2:54][CH2:53]1>CN(C=O)C.O>[CH3:19][N:18]([CH2:20][C:21](=[O:23])[N:55]1[CH2:56][CH2:57][N:52]([C:58](=[O:59])[C:60]2[CH:65]=[CH:64][CH:63]=[CH:62][C:61]=2[C:66]([F:69])([F:67])[F:68])[CH2:53][CH2:54]1)[C:16]([C:13]1[CH:12]=[CH:11][C:10]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)=[CH:15][CH:14]=1)=[O:17]

Participants

8

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 167337831-(2-Trifluoromethylbenzoyl)piperazine hydrochlorideHCID 43239699[(Biphenyl-4-carbonyl)-methyl-amino]-acetic acid

Product 1

HCID 59559638Biphenyl-4-carboxylic acid methyl-{2-oxo-2-[4-(2-trifluoromethyl-benzoyl)-piperazin-1-yl]-ethyl}-amideYield 71.6%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

DIPEA (216 mg, 0.3 mL, 1.6 mmol) was added to a stirred solution of [(biphenyl-4-carbonyl)-methyl-amino]-acetic acid (100 mg, 0.37 mmol) in DMF (3 mL). HOBT (55.2 mg, 0.4 mmol) and EDCI (178 mg, 0.92 mmol) were then added at room temperature. After 2 minutes piperazin-1-yl-(2-trifluoromethyl-phenyl)-methanone hydrochloride salt (131 mg, 0.44 mmol) was added and the resulting mixture was stirred at room temperature overnight. Cold water was then added and filtered the solid precipitated out to afford 135 mg (71.3% yield) of biphenyl-4-carboxylic acid methyl-{2-oxo-2-[4-(2-trifluoromethyl-benzoyl)-piperazin-1-yl]-ethyl}-amide. LCMS Purity: 96.56%. 1H NMR (DMSO-d6): δ 7.9-7.6 (m, 7H), 7.6-7.45 (q, 4H), δ 7.45-7.3 (q, 2H), 4.5-4.2 (m, 2H), 4.15 (s, 1H), 3.8-3.5 (m, 4H), 3.5-3.4 (m, 2H), 3.25-3.1 (m, 2H), 3.0 (s, 3H).

Workup

  1. filtrationfiltered the solid
  2. customprecipitated out

Sources & evidence

ORD record
ord-2f25f3de09f14ad99655326ba4f5b2ca
Source dataset
uspto-grants-2010_11
Patent number
US07842696B2

Linked notes

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