Potassium Phosphate, Tribasic → (2-{4,4-Dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}-4-(5-{[5-(2-methoxyethyl)-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazin-2-yl]amino}-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)pyridin-3-yl)methyl Acetate

HRID 593087Notes

Reaction equation

HRID 593087 reaction equation
[C:1]([O:4][CH2:5][C:6]1[C:7]([N:15]2[CH2:26][CH2:25][N:24]3[C:17](=[CH:18][C:19]4[CH2:20][C:21]([CH3:28])([CH3:27])[CH2:22][C:23]=43)[C:16]2=[O:29])=[N:8][CH:9]=[CH:10][C:11]=1B(O)O)(=[O:3])[CH3:2].Br[C:31]1[CH:32]=[C:33]([NH:39][C:40]2[CH:52]=[C:43]3[CH2:44][N:45]([CH2:48][CH2:49][O:50][CH3:51])[CH2:46][CH2:47][N:42]3[N:41]=2)[C:34](=[O:38])[N:35]([CH3:37])[CH:36]=1.[O-]P([O-])([O-])=O.[K+].[K+].[K+].C([O-])(=O)C.[Na+]>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].O.C(#N)C>[C:1]([O:4][CH2:5][C:6]1[C:7]([N:15]2[CH2:26][CH2:25][N:24]3[C:17](=[CH:18][C:19]4[CH2:20][C:21]([CH3:28])([CH3:27])[CH2:22][C:23]=43)[C:16]2=[O:29])=[N:8][CH:9]=[CH:10][C:11]=1[C:31]1[CH:32]=[C:33]([NH:39][C:40]2[CH:52]=[C:43]3[CH2:44][N:45]([CH2:48][CH2:49][O:50][CH3:51])[CH2:46][CH2:47][N:42]3[N:41]=2)[C:34](=[O:38])[N:35]([CH3:37])[CH:36]=1)(=[O:3])[CH3:2]

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 517045Sodium AcetateHCID 866839925-Bromo-3-(5-(2-methoxyethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-ylamino)-1-methylpyridin-2(1H)-oneHCID 86684340[4-(Dihydroxyboranyl)-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}pyridin-3-yl]methyl acetate

Product 1

HCID 86684541(2-{4,4-Dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}-4-(5-{[5-(2-methoxyethyl)-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazin-2-yl]amino}-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)pyridin-3-yl)methyl AcetateYield 50%

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 962WaterSolventHCID 6342AcetonitrileSolvent

Conditions

Temperature
100 °C

Procedure

A 25-mL round-bottomed flask equipped with a reflux condenser was charged with {3-[(acetoxy)methyl]-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}pyridin-4-yl}boronic acid 199e (198 mg, 0.50 mmol), 296f (190 mg, 0.50 mmol), K3PO4 (212 mg, 1.0 mmol), sodium acetate (82 mg, 1.0 mmol), Pd(dppf)Cl2 (21 mg, 0.025 mmol), acetonitrile (8 mL), and water (0.5 mL). The system was subjected to three cycles of vacuum/nitrogen flush and heated at 100° C. under N2 protection for 1 h. Analysis of the reaction mixture by LCMS showed complete conversion to the desired product. The reaction mixture was cooled to room temperature and filtered. The filtrate was concentrated under reduced pressure. The residue was partitioned between dichloromethane (20 mL) and water (10 mL). The water layer was extracted with dichloromethane (2×20 mL). The combined organic extract was dried over Na2SO4, filtered, and concentrated under reduced pressure. The dark residue was purified by silica-gel column chromatography eluting with dichloromethane/methanol (80/1 to 30/1) to afford 296g (163 mg, 50%) as a yellow solid. MS-ESI: [M+H]+ 654.9

Workup

  1. customA 25-mL round-bottomed flask equipped with a reflux condenser
  2. customflush
  3. temperatureThe reaction mixture was cooled to room temperature
  4. filtrationfiltered
  5. concentrationThe filtrate was concentrated under reduced pressure
  6. customThe residue was partitioned between dichloromethane (20 mL) and water (10 mL)
  7. extractionThe water layer was extracted with dichloromethane (2×20 mL)
  8. extractionThe combined organic extract
  9. dry with materialwas dried over Na2SO4
  10. filtrationfiltered
  11. concentrationconcentrated under reduced pressure
  12. customThe dark residue was purified by silica-gel column chromatography
  13. washeluting with dichloromethane/methanol (80/1 to 30/1)

Sources & evidence

ORD record
ord-754ca30edb924420b6e454ac2b289c61
Source dataset
uspto-grants-2016_01
Patent number
US09238655B2

Reaction notes

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