Sodium Carbonate → N-{[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}-N'-{[3'-formyl-6-(methyloxy)-3-biphenylyl]methyl}-2,6-pyridinedicarboxamide

HRID 662009Notes

Reaction equation

HRID 662009 reaction equation
Br[C:2]1[CH:3]=[C:4]([CH2:10][NH:11][C:12]([C:14]2[CH:19]=[CH:18][CH:17]=[C:16]([C:20]([NH:22][CH2:23][C:24]3[C:25]([NH:37][CH:38]4[CH2:43][CH2:42][O:41][CH2:40][CH2:39]4)=[C:26]4[CH:34]=[N:33][N:32]([CH2:35][CH3:36])[C:27]4=[N:28][C:29]=3[CH2:30][CH3:31])=[O:21])[N:15]=2)=[O:13])[CH:5]=[CH:6][C:7]=1[O:8][CH3:9].[CH:44]([C:46]1[CH:47]=[C:48](B(O)O)[CH:49]=[CH:50][CH:51]=1)=[O:45].C([O-])([O-])=O.[Na+].[Na+]>O1CCOCC1.O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH2:35]([N:32]1[C:27]2=[N:28][C:29]([CH2:30][CH3:31])=[C:24]([CH2:23][NH:22][C:20]([C:16]3[CH:17]=[CH:18][CH:19]=[C:14]([C:12]([NH:11][CH2:10][C:4]4[CH:3]=[C:2]([C:50]5[CH:49]=[CH:48][CH:47]=[C:46]([CH:44]=[O:45])[CH:51]=5)[C:7]([O:8][CH3:9])=[CH:6][CH:5]=4)=[O:13])[N:15]=3)=[O:21])[C:25]([NH:37][CH:38]3[CH2:43][CH2:42][O:41][CH2:40][CH2:39]3)=[C:26]2[CH:34]=[N:33]1)[CH3:36]

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 27343563-Formylphenylboronic acidHCID 57819364N-{[3-bromo-4-(methyloxy)phenyl]methyl}-N'-{[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}-2,6-pyridinedicarboxamide

Product 1

HCID 57819390N-{[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}-N'-{[3'-formyl-6-(methyloxy)-3-biphenylyl]methyl}-2,6-pyridinedicarboxamideYield 49%

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

A mixture of N-{[3-bromo-4-(methyloxy)phenyl]methyl}-N′-{[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}-2,6-pyridinedicarboxamide (900 mg, 1.383 mmol), (3-formylphenyl)boronic acid (207 mg, 1.383 mmol), Na2CO3 (440 mg, 4.15 mmol) and PdCl2(dppf) (101 mg, 0.138 mmol) was diluted in a mixture of 1,4-dioxane (9 mL) and water (3 mL) in a 20 mL Biotage microwave reaction tube. The mixture was degassed by bubbling argon through it for 5 min and it was then heated in a Biotage microwave at normal absorption for 10 min at 100° C. The crude mixture was filtered through a PL-Thiol MP SPE+ and then washed with ethyl acetate. The combined organic layers were washed with brine. The organic layer was concentrated under vacuum to give a crude residue. It was then purified with flash chromatography eluting with 0 to 100% ethyl acetate in dichloromethane (product came out at 85% ethyl acetate in DCM). The product fractions were combined and concentrated under vacuum to give N-{[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}-N′-{[3′-formyl-6-(methyloxy)-3-biphenylyl]methyl}-2,6-pyridinedicarboxamide as an yellowish oil (458 mg, 49%). LC-MS m/z 676.5 (M+H)+, 0.91 min (ret time).

Workup

  1. customThe mixture was degassed
  2. customby bubbling argon through it for 5 min
  3. filtrationThe crude mixture was filtered through a PL-Thiol MP SPE+
  4. washwashed with ethyl acetate
  5. washThe combined organic layers were washed with brine
  6. concentrationThe organic layer was concentrated under vacuum
  7. customto give a crude residue
  8. customIt was then purified with flash chromatography
  9. washeluting with 0 to 100% ethyl acetate in dichloromethane (product
  10. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-d2374eafc21548069e749ba98cb01649
Source dataset
uspto-grants-2011_12
Patent number
US08084449B2

Reaction notes

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