Diisopropylethylamine → N-(2-aminoethyl)-5-methyl-4-(2-(tetrahydro-2H-pyran-4-yloxy)pyridin-3-ylamino)thieno[2,3-d]pyrimidine-6-carboxamide

HRID 450558Notes

Reaction equation

HRID 450558 reaction equation
CN(C(O[N:9]1N=[N:16][C:11]2C=CC=N[C:10]1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[CH3:25][C:26]1[C:34]2[C:33]([NH:35][C:36]3[C:37]([O:42][CH:43]4[CH2:48][CH2:47][O:46][CH2:45][CH2:44]4)=[N:38][CH:39]=[CH:40][CH:41]=3)=[N:32][CH:31]=[N:30][C:29]=2[S:28][C:27]=1[C:49](O)=[O:50].CCN(C(C)C)C(C)C>CN(C=O)C>[NH2:9][CH2:10][CH2:11][NH:16][C:49]([C:27]1[S:28][C:29]2[N:30]=[CH:31][N:32]=[C:33]([NH:35][C:36]3[C:37]([O:42][CH:43]4[CH2:48][CH2:47][O:46][CH2:45][CH2:44]4)=[N:38][CH:39]=[CH:40][CH:41]=3)[C:34]=2[C:26]=1[CH3:25])=[O:50]

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 584131025-methyl-4-(2-(tetrahydro-2H-pyran-4-yloxy)pyridin-3-ylamino)thieno[2,3-d]pyrimidine-6-carboxylic acid

Product 1

HCID 46182126N-(2-aminoethyl)-5-methyl-4-(2-(tetrahydro-2H-pyran-4-yloxy)pyridin-3-ylamino)thieno[2,3-d]pyrimidine-6-carboxamideYield 39%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
0 °C

Procedure

HATU (0.157 g, 0.41 mmol) was added into a mixture of 5-methyl-4-(2-(tetrahydro-2H-pyran-4-yloxy)pyridin-3-ylamino)thieno[2,3-d]pyrimidine-6-carboxylic acid (0.145 g, 0.38 mmol) and Hünig's base (65 μL, 0.38 mmol) in DMF (2.0 mL) at 0° C. The reaction mixture was stirred at 0° C. for 0.5 hours. Tert-butyl-N-(2-aminoethyl) carbamate (296 μL, 1.88 mmol) was added and the coolant removed. The reaction mixture was stirred at ambient temperature overnight. The solvent was concentrated in vacuo and the crude product dissolved in DCM. The organic layer was washed with water, concentrated in vacuo (10 mL) and trifluoroacetic acid added (3.0 mL). The mixture was stirred at ambient temperature overnight, concentrated in vacuo and purified by ion-exchange chromatography (SCX-2 eluting with hydrochloric acid/MeOH→ammonia/MeOH). Further purification by flash-column chromatography (100% DCM→10% ammonia/MeOH/DCM) yielded the title compound as pale yellow solid (0.063 g, 39%).

Workup

  1. customthe coolant removed
  2. stirringThe reaction mixture was stirred at ambient temperature overnight
  3. concentrationThe solvent was concentrated in vacuo
  4. dissolutionthe crude product dissolved in DCM
  5. washThe organic layer was washed with water
  6. concentrationconcentrated in vacuo (10 mL) and trifluoroacetic acid
  7. additionadded (3.0 mL)
  8. stirringThe mixture was stirred at ambient temperature overnight
  9. concentrationconcentrated in vacuo
  10. custompurified by ion-exchange chromatography (SCX-2 eluting with hydrochloric acid/MeOH→ammonia/MeOH)
  11. customFurther purification by flash-column chromatography (100% DCM→10% ammonia/MeOH/DCM)

Sources & evidence

ORD record
ord-7641ab512c6e4e11a170a73a523cee8b
Source dataset
uspto-grants-2013_07
Patent number
US08486953B2

Reaction notes

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