Triethylamine → tert-butyl 3-(4-amino-5-((3,5-dimethoxyphenyl)ethynyl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)azetidine-1-carboxylate

HRID 516168Notes

Reaction equation

HRID 516168 reaction equation
[NH2:1][C:2]1[C:3]2[C:10](I)=[CH:9][N:8]([CH:12]3[CH2:15][N:14]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:13]3)[C:4]=2[N:5]=[CH:6][N:7]=1.[C:23]([C:25]1[CH:30]=[C:29]([O:31][CH3:32])[CH:28]=[C:27]([O:33][CH3:34])[CH:26]=1)#[CH:24].C(N(CC)CC)C.C(OCC)(=O)C>C1COCC1.[Cu]I.O>[NH2:1][C:2]1[C:3]2[C:10]([C:24]#[C:23][C:25]3[CH:26]=[C:27]([O:33][CH3:34])[CH:28]=[C:29]([O:31][CH3:32])[CH:30]=3)=[CH:9][N:8]([CH:12]3[CH2:15][N:14]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:13]3)[C:4]=2[N:5]=[CH:6][N:7]=1

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 8857Ethyl AcetateHCID 46613211-Ethynyl-3,5-dimethoxybenzeneHCID 89870888tert-butyl 3-(4-amino-5-iodo-7H-pyrrolo[2,3-d]pyrimidin-7-yl)azetidine-1-carboxylate

Product 1

HCID 89870982tert-butyl 3-(4-amino-5-((3,5-dimethoxyphenyl)ethynyl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)azetidine-1-carboxylate

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
80 °C

Procedure

PdCl2(dppf)CH2Cl2 (122 mg) was added to a mixture of tert-butyl 3-(4-amino-5-iodo-7H-pyrrolo[2,3-d]pyrimidin-7-yl)azetidine-1-carboxylate (639 mg) obtained in Step 2 above, 1-ethynyl-3,5-dimethoxybenzene (374 mg), copper (I) iodide (44 mg), and triethylamine (2.0 ml) in THF (15 ml). After nitrogen purging, the resulting mixture was stirred at 80° C. for 3.5 hours. Ethyl acetate and water were added to the reaction mixture to separate the organic layer. After being washed with a saturated sodium chloride solution, the organic layer was dried over anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure. The resulting residue was purified by basic silica gel column chromatography (developing solvent: hexane/ethyl acetate) to obtain the title compound as a colorless, amorphous substance (704 mg). Physical properties: m/z [M+H]+ 450.1

Workup

  1. customto separate the organic layer
  2. washAfter being washed with a saturated sodium chloride solution
  3. dry with materialthe organic layer was dried over anhydrous sodium sulfate
  4. distillationthe solvent was distilled off under reduced pressure
  5. customThe resulting residue was purified by basic silica gel column chromatography (developing solvent: hexane/ethyl acetate)

Sources & evidence

ORD record
ord-255f2849edb1448b973e02afa86f92ac
Source dataset
uspto-grants-2015_08
Patent number
US09108973B2

Reaction notes

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