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Diisopropylamine → Thiazole-5-carboxylic acid (2-(4-(2-cyclobutoxy-pyrimidin-5-ylethynyl)-phenyl)-1-methyl-ethyl)-amide

HRID 76208
Notes
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Reaction equation

HRID 76208 reaction equation
I[C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH:9]([NH:11][C:12]([C:14]2[S:18][CH:17]=[N:16][CH:15]=2)=[O:13])[CH3:10])=[CH:4][CH:3]=1.C(NC(C)C)(C)C.[CH:26]1([O:30][C:31]2[N:36]=[CH:35][C:34]([C:37]#[CH:38])=[CH:33][N:32]=2)[CH2:29][CH2:28][CH2:27]1>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.C1COCC1>[CH:26]1([O:30][C:31]2[N:32]=[CH:33][C:34]([C:37]#[C:38][C:2]3[CH:7]=[CH:6][C:5]([CH2:8][CH:9]([NH:11][C:12]([C:14]4[S:18][CH:17]=[N:16][CH:15]=4)=[O:13])[CH3:10])=[CH:4][CH:3]=3)=[CH:35][N:36]=2)[CH2:27][CH2:28][CH2:29]1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 3

HCID 7912DiisopropylamineHCID 66611343HCID 66611343, compoundHCID 866696272-Cyclobutoxy-5-ethynyl-pyrimidine

Product 1

HCID 66611254Thiazole-5-carboxylic acid (2-(4-(2-cyclobutoxy-pyrimidin-5-ylethynyl)-phenyl)-1-methyl-ethyl)-amide

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)
Catalyst
HCID 178418476HCID 178418476, compoundCatalyst
HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
0 °C

Procedure

100 mg (0.27 mmol) thiazole-5-carboxylic acid (2-(4-iodophenyl)-1-methylethyl)-amide (I76) are added to 2.0 mL THF and cooled down to 0° C. 2.87 mg (4.00 μmol) bis(triphenylphosphine)palladium dichloride, 1.02 mg (5.00 μmol) CuI, 90.6 μL (0.65 mmol) diisopropylamine and finally 51.5 mg 2-cyclobutoxy-5-ethynyl-pyrimidine (I25.7) are added and the reaction mixture is stirred at r.t. over night. The solvent is removed in vacuo and the residue is dissolved in EtOAc and washed with diluted ammonia solution (1×) and water (2×). The organic layer is dried with MgSO4 and the solvent is removed in vacuo. The crude product is purified by HPLC (MeOH/H2O/TFA).

Workup

  1. customThe solvent is removed in vacuo
  2. dissolutionthe residue is dissolved in EtOAc
  3. washwashed with diluted ammonia solution (1×) and water (2×)
  4. dry with materialThe organic layer is dried with MgSO4
  5. customthe solvent is removed in vacuo
  6. customThe crude product is purified by HPLC (MeOH/H2O/TFA)

Sources & evidence

ORD record
ord-0913b4b2d62a4d428a2cb55c04ee9ed9
Source dataset
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08835472B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes