1-Hydroxybenzotriazole → Biphenyl-4-carboxylic acid {2-oxo-2-[4-(2-trifluoromethyl-phenylamino)-piperidin-1-yl]-ethyl}-amide

HRID 1093575Notes

Reaction equation

HRID 1093575 reaction equation
[C:1]1([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[CH:6]=[CH:5][C:4]([C:7]([NH:9][CH2:10][C:11]([OH:13])=O)=[O:8])=[CH:3][CH:2]=1.CCN(C(C)C)C(C)C.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl.Cl.Cl.[NH:53]1[CH2:58][CH2:57][CH:56]([NH:59][C:60]2[CH:65]=[CH:64][CH:63]=[CH:62][C:61]=2[C:66]([F:69])([F:68])[F:67])[CH2:55][CH2:54]1>CN(C=O)C.O>[O:13]=[C:11]([N:53]1[CH2:54][CH2:55][CH:56]([NH:59][C:60]2[CH:65]=[CH:64][CH:63]=[CH:62][C:61]=2[C:66]([F:67])([F:68])[F:69])[CH2:57][CH2:58]1)[CH2:10][NH:9][C:7]([C:4]1[CH:3]=[CH:2][C:1]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)=[CH:6][CH:5]=1)=[O:8]

Participants

8

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 2629432-((4-Phenylphenyl)formamido)acetic acidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 66591440Piperidin-4-yl-(2-trifluoromethyl-phenyl)-amine dihydrochloride

Product 1

HCID 57874380Biphenyl-4-carboxylic acid {2-oxo-2-[4-(2-trifluoromethyl-phenylamino)-piperidin-1-yl]-ethyl}-amideYield 72.7%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a stirred solution of [(biphenyl-4-carbonyl)-amino]-acetic acid (0.03219 g, 0.00012 mol) in DMF (1 mL), was added, DIPEA (0.065 g, 0.0005 mol), HOBt (0.017 g, 0.00012 mol) and EDCI.HCl (0.2689 g, 0.00013 mol) at ambient temperature. After 2 minutes piperidin-4-yl-(2-trifluoromethyl-phenyl)-amine dihydrochloride (0.04 g, 0.00012 mol) was and the resulting mixture was stirred at the same temperature overnight. The reaction mixture was diluted with cold water, and the resulting precipitate was isolated by filtration. The solid was recrystallized from a mixture of ethyl acetate and hexane to afford 0.042 g (61%) of biphenyl-4-carboxylic acid {2-oxo-2-[4-(2-trifluoromethyl-phenylamino)-piperidin-1-yl]-ethyl}-amide. LCMS: 482.1 (M+1)+, 97.99%, 1H NMR (DMSO-d6): δ 8.6 (t, 1H), 8.0 (m, 2H), 7.78-7.5 (m, 4H), 7.6-7.4 (m, 5H), 7.0 (d, 1H), 6.7 (t, 1H), 4.7 (d, 1H), 4.3 (m, 1H), 4.2 (d, 2H), 4.0-3.7 (m, 2H), 3.2 (m, 2H), 2.8 (m, 2H), 2.0 (m, 3H), 1.6-1.2 (m, 4H).

Workup

  1. customat ambient temperature
  2. customthe resulting precipitate was isolated by filtration
  3. customThe solid was recrystallized from a mixture of ethyl acetate and hexane

Sources & evidence

ORD record
ord-5422131c74324721afce12f127f27672
Source dataset
uspto-grants-2012_03
Patent number
US08129376B2

Reaction notes

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