Potassium Phosphate, Tribasic → 4-(1-Methyl-5-(6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)-2-(4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl)nicotinaldehyde

HRID 1021801Notes

Reaction equation

HRID 1021801 reaction equation
Cl[C:2]1[CH:7]=[CH:6][N:5]=[C:4]([N:8]2[CH2:19][CH2:18][N:17]3[C:10](=[CH:11][C:12]4[CH2:13][C:14]([CH3:21])([CH3:20])[CH2:15][C:16]=43)[C:9]2=[O:22])[C:3]=1[CH:23]=[O:24].[N:25]1[N:33]2[C:28]([CH2:29][O:30][CH2:31][CH2:32]2)=[CH:27][C:26]=1[NH:34][C:35]1[C:36](=[O:51])[N:37]([CH3:50])[CH:38]=[C:39](B2OC(C)(C)C(C)(C)O2)[CH:40]=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>[CH3:50][N:37]1[C:36](=[O:51])[C:35]([NH:34][C:26]2[CH:27]=[C:28]3[CH2:29][O:30][CH2:31][CH2:32][N:33]3[N:25]=2)=[CH:40][C:39]([C:2]2[C:3]([CH:23]=[O:24])=[C:4]([N:8]3[CH2:19][CH2:18][N:17]4[C:10](=[CH:11][C:12]5[CH2:13][C:14]([CH3:21])([CH3:20])[CH2:15][C:16]=54)[C:9]3=[O:22])[N:5]=[CH:6][CH:7]=2)=[CH:38]1

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 517045Sodium AcetateHCID 580440283-(6,7-Dihydro-4H-pyrazolo[5,1-c][1,4]oxazin-2-ylamino)-1-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-oneHCID 768540784-chloro-2-(7,7-dimethyl-1-oxo-1,3,4,6,7,8-hexahydro-2H-cyclopenta(4,5)pyrrolo(1,2-a)pyrazin-2-yl)nicotinaldehyde

Product 1

HCID 866842974-(1-Methyl-5-(6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)-2-(4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl)nicotinaldehydeYield 78%

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 4-chloro-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}pyridine-3-carbaldehyde 108a (200 mg, 0.58 mmol), 168a (433 mg, 1.16 mmol), PdCl2(dppf) (48 mg, 0.052 mmol), K3PO4 (246 mg, 1.16 mmol), sodium acetate (96 mg, 1.16 mmol), acetonitrile (10 mL), and water (0.5 mL). The system was evacuated and refilled with N2. The reaction mixture was stirred 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 168b (250 mg, 78%) as a yellow solid. MS-ESI: [M+H]+ 554.6.

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-c8a263dd513943ebaffb0f8f4b77b42b
Source dataset
uspto-grants-2014_05
Patent number
US08716274B2

Reaction notes

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