Triethylamine → 3-(3-{5-Ethyl-3-[2-fluoro-6-(4-methoxy-benzylamino)-pyridin-4-ylmethyl]-2,6-dioxo-1,2,3,6-tetrahydro-pyrimidine-4-carbonyl}-5-methyl-phenyl)-acrylonitrile

HRID 426208Notes

Reaction equation

HRID 426208 reaction equation
[F:1][C:2]1[CH:7]=[C:6]([CH2:8]O)[CH:5]=[C:4]([NH:10][CH2:11][C:12]2[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[CH:14][CH:13]=2)[N:3]=1.C(N(CC)CC)C.CS(Cl)(=O)=O.[CH2:32]([C:34]1[C:39](=[O:40])[NH:38][C:37](=[O:41])[NH:36][C:35]=1[C:42]([C:44]1[CH:45]=[C:46]([CH:51]=[CH:52][C:53]#[N:54])[CH:47]=[C:48]([CH3:50])[CH:49]=1)=[O:43])[CH3:33].C(=O)([O-])[O-].[K+].[K+].[I-].[Li+]>C(Cl)(Cl)Cl.ClCCl.CN(C=O)C>[CH2:32]([C:34]1[C:39](=[O:40])[NH:38][C:37](=[O:41])[N:36]([CH2:8][C:6]2[CH:5]=[C:4]([NH:10][CH2:11][C:12]3[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[CH:14][CH:13]=3)[N:3]=[C:2]([F:1])[CH:7]=2)[C:35]=1[C:42]([C:44]1[CH:45]=[C:46]([CH:51]=[CH:52][C:53]#[N:54])[CH:47]=[C:48]([CH3:50])[CH:49]=1)=[O:43])[CH3:33]

Participants

10

Reactant 6

HCID 8471TriethylamineHCID 11430Potassium CarbonateHCID 31297Methanesulfonyl chlorideHCID 66321Lithium iodideHCID 59184650HCID 59184650, compoundHCID 667053953-[3-(5-Ethyl-2,6-dioxo-1,2,3,6-tetrahydro-pyrimidine-4-carbonyl)-5-methyl-phenyl]-acrylonitrile

Product 1

HCID 667054413-(3-{5-Ethyl-3-[2-fluoro-6-(4-methoxy-benzylamino)-pyridin-4-ylmethyl]-2,6-dioxo-1,2,3,6-tetrahydro-pyrimidine-4-carbonyl}-5-methyl-phenyl)-acrylonitrileYield 42%

Reagents, catalysts & solvents 3

HCID 6212ChloroformSolventHCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolvent

Procedure

To a stirred solution of 2-fluoro-6-(p-methoxybenzylamino)-4-pyridine-methanol (262 mg, 1 mmol) in chloroform (10 ml) at 0° C. (ice bath), was added triethylamine (210 μl, 1.5 mmol) followed by methanesulfonyl chloride (90 μl, 1.2 mmol). After stirring for 1.5 hr., the mixture was diluted with dichloromethane, washed with aqueous saturated sodium bicarbonate solution, dried with anhydrous magnesium sulfate, filtered, and evaporated in vacuo. The residue was further dried in high vacuo and mixed with 3-[3-(5-ethyl-2,6-dioxo-1,2,3,6-tetrahydro-pyrimidine-4-carbonyl)-5-methyl-phenyl]-acrylonitrile (323 mg, 1 mmol), anhydrous powdered potassium carbonate (138 mg, 1 mmol), lithium iodide (134 mg, 1 mmol). Anhydrous DMF (5 ml) was then added into the mixture and stirred for overnight at room temperature. The mixture was evaporated in vacuo. The residue was dissolved in methanol-dichloromethane (1:9), filtered through celite pad, and evaporated in vacuo to give a light yellow foam. The crude product was purified by silica gel column chromatography (eluent, EA:hexanes (1:2); The fraction of Rf=0.11 was collected.) to afford 232 mg (42%) of a pale yellow solid.

Workup

  1. washwashed with aqueous saturated sodium bicarbonate solution
  2. dry with materialdried with anhydrous magnesium sulfate
  3. filtrationfiltered
  4. customevaporated in vacuo
  5. customThe residue was further dried in high vacuo
  6. stirringstirred for overnight at room temperature
  7. customThe mixture was evaporated in vacuo
  8. dissolutionThe residue was dissolved in methanol-dichloromethane (1:9)
  9. filtrationfiltered through celite pad
  10. customevaporated in vacuo
  11. customto give a light yellow foam
  12. customThe crude product was purified by silica gel column chromatography (eluent, EA:hexanes (1:2)
  13. customThe fraction of Rf=0.11 was collected

Sources & evidence

ORD record
ord-b15efaa392dc4b81b4f913aa2ad43433
Source dataset
uspto-grants-2012_01
Patent number
US08106064B2

Reaction notes

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