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

HRID 391609
Notes
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Reaction equation

HRID 391609 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
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

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 11776
Triphenylphosphine
Catalyst
HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)Catalyst
HCID 178418476HCID 178418476, compoundCatalyst
HCID 6228DimethylformamideSolvent

Conditions

Temperature
60 °C

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. custompartitioned between EtOAc and dilute brine
  3. dry with materialThe EtOAc layer was dried with anhydrous Na2SO4 and rotary evaporated
  4. customThe solid was recrystallized from EtOAc/hexane

Sources & evidence

ORD record
ord-2d6daf7400d547ef9eec79c9940fef01
Source dataset
uspto-grants-2013_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08383825B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes