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

HRID 407646Notes

Reaction equation

HRID 407646 reaction equation
[CH3:1][N:2]1[CH:7]=[C:6](B2OC(C)(C)C(C)(C)O2)[CH:5]=[C:4]([NH:17][C:18]2[CH:23]=[CH:22][N:21]=[C:20]([CH3:24])[N:19]=2)[C:3]1=[O:25].[C:26]([C:30]1[CH:31]=[C:32]2[C:37](=[C:38]([F:40])[CH:39]=1)[C:36](=[O:41])[N:35]([C:42]1[N:49]=[CH:48][CH:47]=[C:46](Cl)[C:43]=1[CH:44]=[O:45])[N:34]=[CH:33]2)([CH3:29])([CH3:28])[CH3:27].[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:26]([C:30]1[CH:31]=[C:32]2[C:37](=[C:38]([F:40])[CH:39]=1)[C:36](=[O:41])[N:35]([C:42]1[N:49]=[CH:48][CH:47]=[C:46]([C:6]3[CH:5]=[C:4]([NH:17][C:18]4[CH:23]=[CH:22][N:21]=[C:20]([CH3:24])[N:19]=4)[C:3](=[O:25])[N:2]([CH3:1])[CH:7]=3)[C:43]=1[CH:44]=[O:45])[N:34]=[CH:33]2)([CH3:29])([CH3:27])[CH3:28]

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 517045Sodium AcetateHCID 866839152-(6-tert-Butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-4-chloronicotinaldehydeHCID 866839351-Methyl-3-(2-methylpyrimidin-4-ylamino)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-one

Product 1

HCID 866839342-(6-tert-Butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-4-(1-methyl-5-(2-methylpyrimidin-4-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)nicotinaldehydeYield 36%

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 single-neck round-bottomed flask equipped with a magnetic stirrer and a reflux condenser was charged with 114b (236 mg, 0.69 mmol), 2-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-4-chloronicotinaldehyde 103b (250 mg, 0.69 mmol), PdCl2(dppf) (29 mg, 0.035 mmol), K3PO4 (296 mg, 1.39 mmol), sodium acetate (114 mg, 1.39 mmol), acetonitrile (15 mL), and water (1 mL). The system was evacuated and refilled with N2. The reaction mixture was heated at 100° C. for 2 h. It was then cooled to room temperature and filtered. The filtrate was concentrated under reduced pressure and the resulting residue was purified by silica-gel column chromatography eluting with 30:1 dichloromethane/methanol to afford 114c (134 mg, 36%) as a yellow solid. MS-ESI: [M+H]+ 540.2.

Workup

  1. customA 50-mL single-neck round-bottomed flask equipped with a magnetic stirrer and a reflux condenser
  2. customThe system was evacuated
  3. additionrefilled with N2
  4. temperatureIt was then cooled to room temperature
  5. filtrationfiltered
  6. concentrationThe filtrate was concentrated under reduced pressure
  7. customthe resulting residue was purified by silica-gel column chromatography
  8. washeluting with 30:1 dichloromethane/methanol

Sources & evidence

ORD record
ord-068ddc0dea7246a59136c934c9dcffca
Source dataset
uspto-grants-2014_06
Patent number
US08754077B2

Reaction notes

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