Triethylamine → Methyl 3-[({[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}amino)carbonyl]benzoate

HRID 564532Notes

Reaction equation

HRID 564532 reaction equation
[NH2:1][CH2:2][C:3]1[C:8]([CH2:9][CH3:10])=[N:7][C:6]2[N:11]([CH2:14][CH3:15])[N:12]=[CH:13][C:5]=2[C:4]=1[NH:16][CH:17]1[CH2:22][CH2:21][O:20][CH2:19][CH2:18]1.[CH3:23][O:24][C:25]([C:27]1[CH:28]=[C:29]([CH:33]=[CH:34][CH:35]=1)[C:30](O)=[O:31])=[O:26].CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(CC)CC>C(Cl)Cl>[CH2:14]([N:11]1[C:6]2=[N:7][C:8]([CH2:9][CH3:10])=[C:3]([CH2:2][NH:1][C:30]([C:29]3[CH:28]=[C:27]([CH:35]=[CH:34][CH:33]=3)[C:25]([O:24][CH3:23])=[O:26])=[O:31])[C:4]([NH:16][CH:17]3[CH2:18][CH2:19][O:20][CH2:21][CH2:22]3)=[C:5]2[CH:13]=[N:12]1)[CH3:15]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 6018803-(Methoxycarbonyl)benzoic acidHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 596832145-(Aminomethyl)-1,6-diethyl-N-(tetrahydro-2H-pyran-4-yl)-1H-pyrazolo[3,4-b]pyridin-4-amine

Product 1

HCID 57813262Methyl 3-[({[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}amino)carbonyl]benzoateYield 102.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A mixture of 5-(aminomethyl)-1,6-diethyl-N-(tetrahydro-2H-pyran-4-yl)-1H-pyrazolo[3,4-b]pyridin-4-amine (1.0 g, 2.94 mmol), 3-[(methyloxy)-carbonyl]benzoic acid (0.58 g, 3.24 mmol), HBTU (1.34 g, 3.53 mmol) and Et3N (0.82 mL, 5.89 mmol) in DCM (30 mL) was stirred at room temperature overnight. The reaction was quenched with saturated NaHCO3 and the solution extracted with DCM twice. The combined organic layers were washed with water followed by a brine wash. The organic layer was dried over sodium sulfate, filtered, concentrated and purified using CombiFlash chromatography, eluting with 80% ethyl acetate in hexane. The product fractions were combined and concentrated to give methyl 3-[({[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}amino)-carbonyl]benzoate as an oil (1.40 g, 99%). LC-MS m/z 467 (M+H)+.

Workup

  1. customThe reaction was quenched with saturated NaHCO3
  2. extractionthe solution extracted with DCM twice
  3. washThe combined organic layers were washed with water
  4. washwash
  5. dry with materialThe organic layer was dried over sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. custompurified
  9. washeluting with 80% ethyl acetate in hexane
  10. concentrationconcentrated

Sources & evidence

ORD record
ord-38572c81dadc4c4dadcf4cd2e0e651fa
Source dataset
uspto-grants-2011_11
Patent number
US08067408B2

Reaction notes

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