Triethylamine → methyl 6-amino-5-[(3-{[(1,3-dimethyl-1H-pyrazol-5-yl)carbonyl]amino}phenyl)ethynyl]nicotinate

HRID 607484Notes

Reaction equation

HRID 607484 reaction equation
[NH2:1][C:2]1[C:11](I)=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:4][N:3]=1.[C:13]([C:15]1[CH:16]=[C:17]([NH:21][C:22]([C:24]2[N:28]([CH3:29])[N:27]=[C:26]([CH3:30])[CH:25]=2)=[O:23])[CH:18]=[CH:19][CH:20]=1)#[CH:14].C(N(CC)CC)C>CN(C=O)C.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[NH2:1][C:2]1[C:11]([C:14]#[C:13][C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([NH:21][C:22]([C:24]3[N:28]([CH3:29])[N:27]=[C:26]([CH3:30])[CH:25]=3)=[O:23])[CH:16]=2)=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:4][N:3]=1

Participants

8

Reactant 3

HCID 8471TriethylamineHCID 15350913Methyl 6-amino-5-iodopyridine-3-carboxylateHCID 57657904N-(3-ethynylphenyl)-1,3-dimethyl-1H-pyrazole-5-carboxamide

Product 1

HCID 57657963methyl 6-amino-5-[(3-{[(1,3-dimethyl-1H-pyrazol-5-yl)carbonyl]amino}phenyl)ethynyl]nicotinateYield 78.3%

Reagents, catalysts & solvents 4

HCID 11776TriphenylphosphineCatalystHCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 6228DimethylformamideSolvent

Procedure

A mixture of methyl 6-amino-5-iodonicotinate (111 mg, 0.40 mmol), N-(3-ethynylphenyl)-1,3-dimethyl-1H-pyrazole-5-carboxamide (144 mg, 0.60 mmol), triethylamine (0.167 ml, 1.2 mmol), dichlorobis(triphenylphosphine)palladium(II) (23 mg, 0.032 mmol) and triphenylphosphine (5.2 mg, 0.020 mmol) in 3.2 ml DMF at room temperature was degassed using vacuum and a balloon of H2, then copper(I) iodide (3.8 mg, 0.020 mmol) added. The reaction was heated at 60□ C. for 1 hour 40 minutes, then partitioned between EtOAc and dilute brine. The EtOAc layer was dried with anhydrous Na2SO4 and rotary evaporated. The solid was recrystallized from EtOAc/hexane to give the title compound as a yellow-tan solid (122 mg, 78%).

Workup

  1. customwas degassed
  2. temperatureThe reaction was heated at 60□ C
  3. custompartitioned between EtOAc and dilute brine
  4. dry with materialThe EtOAc layer was dried with anhydrous Na2SO4 and rotary evaporated
  5. customThe solid was recrystallized from EtOAc/hexane

Sources & evidence

ORD record
ord-57f06e5c8123482a9b5a7d21bc0b8c39
Source dataset
uspto-grants-2011_03
Patent number
US07915443B2

Reaction notes

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