Triethylamine → 1-[4-[4-(4,5-dihydro-5-phenyl-3-isoxazolyl)-2-thiazolyl]-1-piperazinyl]-2-[5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]ethanone

HRID 2096000Notes

Reaction equation

HRID 2096000 reaction equation
Cl.[C:2]1([CH:8]2[O:12][N:11]=[C:10]([C:13]3[N:14]=[C:15]([N:18]4[CH2:23][CH2:22][NH:21][CH2:20][CH2:19]4)[S:16][CH:17]=3)[CH2:9]2)[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:24][C:25]1[N:29]([CH2:30][C:31](O)=[O:32])[N:28]=[C:27]([C:34]([F:37])([F:36])[F:35])[CH:26]=1.Cl.CN(C)CCCN=C=NCC.C(N(CC)CC)C.O.ON1C2C=CC=CC=2N=N1>ClCCl>[C:2]1([CH:8]2[O:12][N:11]=[C:10]([C:13]3[N:14]=[C:15]([N:18]4[CH2:23][CH2:22][N:21]([C:31](=[O:32])[CH2:30][N:29]5[C:25]([CH3:24])=[CH:26][C:27]([C:34]([F:37])([F:36])[F:35])=[N:28]5)[CH2:20][CH2:19]4)[S:16][CH:17]=3)[CH2:9]2)[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

7

Reactant 5

HCID 8471TriethylamineHCID 5961182-(5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 672350611-[4-(4,5-Dihydro-5-phenyl-3-isoxazolyl)-2-thiazolyl]piperazine hydrochloride2×

Product 1

HCID 687468181-[4-[4-(4,5-dihydro-5-phenyl-3-isoxazolyl)-2-thiazolyl]-1-piperazinyl]-2-[5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]ethanone

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a solution of 1-[4-(4,5-dihydro-5-phenyl-3-isoxazolyl)-2-thiazolyl]piperazine hydrochloride (i.e. the product of Example 7, Step E) (200 mg, 0.57 mmol) and 5-methyl-3-(trifluoromethyl)-1H-pyrazole-1-acetic acid (0.120 g, 0.57 mmol) in dichloromethane (10 mL) at room temperature was added 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride (0.110 g, 0.57 mmol), triethylamine (0.086 g, 0.85 mmol) and 1-hydroxy-benzotriazole hydrate (0.020 g, 0.14 mmol). The reaction mixture was stirred at room temperature for 24 h. The reaction mixture was diluted with dichloromethane (30 mL) and washed with water (20 mL) and brine (20 mL). The organic layer was dried (Na2SO4) and concentrated under reduced pressure. The crude residue was purified by column chromatography using 3% methanol in chloroform as eluant to give 180 mg of the title product as a white solid.

Workup

  1. washwashed with water (20 mL) and brine (20 mL)
  2. dry with materialThe organic layer was dried (Na2SO4)
  3. concentrationconcentrated under reduced pressure
  4. customThe crude residue was purified by column chromatography

Sources & evidence

ORD record
ord-17aefc3ea02743f6895c11c8c5771536
Source dataset
uspto-grants-2013_05
Patent number
US08449898B2

Reaction notes

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