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

HRID 1185113

Reaction equation

HRID 1185113 reaction equation
Cl[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:15]=[C:14]([CH3:16])[N:13]([CH3:17])[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[N:7]=1.[C:18]([O:21][CH2:22][C:23]1[C:24]([N:38]2[N:47]=[CH:46][C:45]3[C:40](=[C:41]([F:52])[CH:42]=[C:43]([C:48]([CH3:51])([CH3:50])[CH3:49])[CH:44]=3)[C:39]2=[O:53])=[N:25][CH:26]=[CH:27][C:28]=1B1OC(C)(C)C(C)(C)O1)(=[O:20])[CH3:19].[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:18]([O:21][CH2:22][C:23]1[C:24]([N:38]2[N:47]=[CH:46][C:45]3[C:40](=[C:41]([F:52])[CH:42]=[C:43]([C:48]([CH3:50])([CH3:49])[CH3:51])[CH:44]=3)[C:39]2=[O:53])=[N:25][CH:26]=[CH:27][C:28]=1[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:15]=[C:14]([CH3:16])[N:13]([CH3:17])[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[N:7]=1)(=[O:20])[CH3:19]

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 517045Sodium AcetateHCID 585400026-chloro-4-(1,5-dimethyl-1H-pyrazol-3-ylamino)-2-methylpyridazin-3(2H)-oneHCID 86683972(2-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)methyl acetate

Product 1

HCID 86683974(2-(6-tert-Butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-4-(5-(1,5-dimethyl-1H-pyrazol-3-ylamino)-1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)pyridin-3-yl)methyl AcetateYield 65.3%

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 127b (120 mg, 0.47 mmol), (2-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)methyl acetate 116c (536 mg, 1.3 mmol), Pd(dppf)Cl2 (34 mg, 0.047 mmol), K3PO4 (199 mg, 0.94 mmol), sodium acetate (77 mg, 0.94 mmol), acetonitrile (10 mL), and water (0.2 mL). After three cycles of vacuum/argon flush, the 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 dichloromethane/methanol (100:1 to 30:1) to afford 127c (180 mg, 65%) as a black oil. MS-ESI: [M+H]+ 587.1

Workup

  1. customA 50-mL single-neck round-bottomed flask equipped with a magnetic stirrer and a reflux condenser
  2. customAfter three cycles of vacuum/argon flush
  3. temperatureIt was then cooled to room temperature
  4. filtrationfiltered
  5. concentrationThe filtrate was concentrated under reduced pressure
  6. customthe resulting residue was purified by silica-gel column chromatography
  7. washeluting with dichloromethane/methanol (100:1 to 30:1)

Sources & evidence

ORD record
ord-8f14f58ee6e642c88adca0829249ed9b
Source dataset
uspto-grants-2014_03
Patent number
US08669251B2

Linked notes

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