1-Hydroxybenzotriazole → 5-phenyl-1H-pyrazole-3-carboxylic acid {2-[4-(2-chloro-phenoxy)-piperidin-1-yl]-2-oxo-ethyl}-amide

HRID 1093604Notes

Reaction equation

HRID 1093604 reaction equation
[C:1]1([C:7]2[NH:11][N:10]=[C:9]([C:12]([NH:14][CH2:15][C:16]([OH:18])=O)=[O:13])[CH:8]=2)[CH:6]=[CH:5][CH:4]=[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:51][C:52]1[CH:64]=[CH:63][CH:62]=[CH:61][C:53]=1[O:54][CH:55]1[CH2:60][CH2:59][NH:58][CH2:57][CH2:56]1>CN(C=O)C.O>[Cl:51][C:52]1[CH:64]=[CH:63][CH:62]=[CH:61][C:53]=1[O:54][CH:55]1[CH2:60][CH2:59][N:58]([C:16](=[O:18])[CH2:15][NH:14][C:12]([C:9]2[CH:8]=[C:7]([C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)[NH:11][N:10]=2)=[O:13])[CH2:57][CH2:56]1

Participants

8

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 167325894-(2-Chlorophenoxy)piperidine hydrochlorideHCID 178525878HCID 178525878, compound

Product 1

HCID 1785234935-phenyl-1H-pyrazole-3-carboxylic acid {2-[4-(2-chloro-phenoxy)-piperidin-1-yl]-2-oxo-ethyl}-amideYield 90.6%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a stirred solution of [(5-phenyl-1H-pyrazole-3-carbonyl)-amino]-acetic acid (0.038 g, 0.00013 mol) in DMF (2 mL) was added DIPEA (0.0872 g, 0.00067 mol), HOBt (0.023 g, 0.00017 mol) and EDCI.HCl (0.0325 g, 0.00017 mol) at ambient temperature. After 2 minutes 4-(2-chlorophenoxy)-piperidine hydrochloride (0.03347 g, 0.00013 mol) was added and the resulting mixture was stirred overnight. The reaction mixture was then diluted with cold water. The resulting precipitate was isolated by filtration and dried to afford 0.0517 g (87%) of 5-phenyl-1H-pyrazole-3-carboxylic acid {2-[4-(2-chloro-phenoxy)-piperidin-1-yl]-2-oxo-ethyl}-amide. LCMS: 439.15 (M+1)+, 98.84%, 1H NMR (DMSO-d6): δ 13.7 (s, 1H), 8.1 (s, 1H), 7.8 (d, 2H), 7.42 (m, 3H), 7.32 (m, 1H), 7.24 (m, 2H), 7.1 (s, 1H), 7.0 (t, 1H), 4.7 (m, 1H), 4.1 (d, 2H), 3.7 (m, 2H), 3.4 (m, 2H), 1.9 (m, 2H), 1.6 (m, 2H).

Workup

  1. customThe resulting precipitate was isolated by filtration
  2. customdried

Sources & evidence

ORD record
ord-47bf4647b8424b8e884df92fb276a8bc
Source dataset
uspto-grants-2012_03
Patent number
US08129376B2

Reaction notes

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