Triethylamine → N-(4-((2-(cyclopropanecarboxamido)pyridin-4-yl)oxy)phenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide

HRID 872992Notes

Reaction equation

HRID 872992 reaction equation
[NH2:1][C:2]1[CH:7]=[C:6]([O:8][C:9]2[CH:14]=[CH:13][C:12]([NH:15][C:16]([C:18]3[C:19](=[O:31])[N:20]([C:25]4[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=4)[N:21]([CH3:24])[C:22]=3[CH3:23])=[O:17])=[CH:11][CH:10]=2)[CH:5]=[CH:4][N:3]=1.C(N(CC)CC)C.[CH:39]1([C:42](Cl)=[O:43])[CH2:41][CH2:40]1>C(Cl)Cl>[CH:39]1([C:42]([NH:1][C:2]2[CH:7]=[C:6]([O:8][C:9]3[CH:10]=[CH:11][C:12]([NH:15][C:16]([C:18]4[C:19](=[O:31])[N:20]([C:25]5[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=5)[N:21]([CH3:24])[C:22]=4[CH3:23])=[O:17])=[CH:13][CH:14]=3)[CH:5]=[CH:4][N:3]=2)=[O:43])[CH2:41][CH2:40]1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 77637Cyclopropanecarbonyl chlorideHCID 73053608N-(4-((2-aminopyridin-4-yl)oxy)phenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide

Product 1

HCID 73051077N-(4-((2-(cyclopropanecarboxamido)pyridin-4-yl)oxy)phenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamideYield 56%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of N-(4-((2-aminopyridin-4-yl)oxy)phenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide (200 mg, 0.48 mmol) in DCM (5 mL) was added triethylamine (1 mL), followed by adding cyclopropanecarbonyl chloride (104.5 mg, 0.96 mmol) at 0° C. The reaction mixture was warmed to rt and stirred for 3 hours, then quenched with water (10 mL). The separated organic layer was added saturated aq. Na2CO3 (10 mL) and EtOH (30 mL). The mixture was stirred at rt for 30 minutes and concentrated in vacuo. The residue was purified by a silica gel column chromatography (DCM/MeOH (v/v)=80/1) to give the title compound as a white solid (130 mg, 56%).

Workup

  1. customquenched with water (10 mL)
  2. additionThe separated organic layer was added saturated aq. Na2CO3 (10 mL) and EtOH (30 mL)
  3. stirringThe mixture was stirred at rt for 30 minutes
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by a silica gel column chromatography (DCM/MeOH (v/v)=80/1)

Sources & evidence

ORD record
ord-c6219369df7642729efe46f82be244d1
Source dataset
uspto-grants-2015_03
Patent number
US08975282B2

Reaction notes

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