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 407664Notes

Reaction equation

HRID 407664 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-29b98f16de9a4f7499336c0174b84bdf
Source dataset
uspto-grants-2014_06
Patent number
US08754077B2

Reaction notes

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