Potassium Phosphate, Tribasic → (2-(6-tert-Butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-4-(5-(1-ethyl-5-methyl-1H-pyrazol-3-ylamino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)pyridin-3-yl)methyl Acetate

HRID 1185078Notes

Reaction equation

HRID 1185078 reaction equation
Br[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:15]=[C:14]([CH3:16])[N:13]([CH2:17][CH3:18])[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[CH:7]=1.[C:19]([O:22][CH2:23][C:24]1[C:25]([N:33]2[N:42]=[CH:41][C:40]3[C:35](=[C:36]([F:47])[CH:37]=[C:38]([C:43]([CH3:46])([CH3:45])[CH3:44])[CH:39]=3)[C:34]2=[O:48])=[N:26][CH:27]=[CH:28][C:29]=1B(O)O)(=[O:21])[CH3:20].[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:19]([O:22][CH2:23][C:24]1[C:25]([N:33]2[N:42]=[CH:41][C:40]3[C:35](=[C:36]([F:47])[CH:37]=[C:38]([C:43]([CH3:45])([CH3:44])[CH3:46])[CH:39]=3)[C:34]2=[O:48])=[N:26][CH:27]=[CH:28][C:29]=1[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:15]=[C:14]([CH3:16])[N:13]([CH2:17][CH3:18])[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[CH:7]=1)(=[O:21])[CH3:20]

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 517045Sodium AcetateHCID 580442355-Bromo-3-(1-ethyl-5-methyl-1H-pyrazol-3-ylamino)-1-methylpyridin-2(1H)-oneHCID 866839433-(Acetoxymethyl)-2-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)pyridin-4-ylboronic Acid

Product 1

HCID 86683949(2-(6-tert-Butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-4-(5-(1-ethyl-5-methyl-1H-pyrazol-3-ylamino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)pyridin-3-yl)methyl AcetateYield 41%

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 50-mL round-bottomed flask equipped with a reflux condenser was charged with 118b (103 mg, 0.33 mmol), 3-(acetoxymethyl)-2-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)pyridin-4-ylboronic acid 116c (136 mg, 0.33 mmol), PdCl2(dppf) (27 mg, 0.033 mmol), K3PO4 (171 mg, 0.66 mmol), sodium acetate (54 mg, 0.66 mmol), acetonitrile (10 mL), and water (0.5 mL). After three cycles of vacuum/argon flush, the mixture was heated at 100° C. for 3 h. It was then filtered and the filtrate was in vacuo. The residue was purified by silica-gel column chromatography eluting with 1:20 methanol/dichloromethane to afford 118c as a yellow solid (80 mg, 41%). MS-ESI: [M+H]+ 600.2

Workup

  1. customA 50-mL round-bottomed flask equipped with a reflux condenser
  2. customAfter three cycles of vacuum/argon flush
  3. filtrationIt was then filtered
  4. customThe residue was purified by silica-gel column chromatography
  5. washeluting with 1:20 methanol/dichloromethane

Sources & evidence

ORD record
ord-90b40659ea8340fcb33ff61a0501aa10
Source dataset
uspto-grants-2014_03
Patent number
US08669251B2

Reaction notes

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