Potassium Phosphate, Tribasic → 4-[5-({6,6-Dimethyl-4H,6H,7H-pyrazolo[3,2-c][1,4]oxazin-2-yl}amino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl]-2-{4,4-dimethyl-9-oxo-7-thia-10,11-diazatricyclo[6.4.0.02,6]dodeca-1(8),2(6),11-trien-10-yl}pyridine-3-carb aldehyde

HRID 593177Notes

Reaction equation

HRID 593177 reaction equation
[CH3:1][C:2]1([CH3:29])[O:7][CH2:6][C:5]2=[CH:8][C:9]([NH:11][C:12]3[C:13](=[O:28])[N:14]([CH3:27])[CH:15]=[C:16](B4OC(C)(C)C(C)(C)O4)[CH:17]=3)=[N:10][N:4]2[CH2:3]1.Cl[C:31]1[CH:36]=[CH:35][N:34]=[C:33]([N:37]2[N:48]=[CH:47][C:46]3[C:45]4[CH2:44][C:43]([CH3:50])([CH3:49])[CH2:42][C:41]=4[S:40][C:39]=3[C:38]2=[O:51])[C:32]=1[CH:52]=[O:53].[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].C(#N)C.O>[CH3:29][C:2]1([CH3:1])[O:7][CH2:6][C:5]2=[CH:8][C:9]([NH:11][C:12]3[C:13](=[O:28])[N:14]([CH3:27])[CH:15]=[C:16]([C:31]4[CH:36]=[CH:35][N:34]=[C:33]([N:37]5[N:48]=[CH:47][C:46]6[C:45]7[CH2:44][C:43]([CH3:49])([CH3:50])[CH2:42][C:41]=7[S:40][C:39]=6[C:38]5=[O:51])[C:32]=4[CH:52]=[O:53])[CH:17]=3)=[N:10][N:4]2[CH2:3]1

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 517045Sodium AcetateHCID 866845164-Chloro-2-{4,4-dimethyl-9-oxo-7-thia-10,11-diazatricyclo[6.4.0.02,6]dodeca-1(8),2(6),11-trien-10-yl}pyridine-3-carbaldehydeHCID 866846053-(6,6-Dimethyl-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)-one

Product 1

HCID 866846064-[5-({6,6-Dimethyl-4H,6H,7H-pyrazolo[3,2-c][1,4]oxazin-2-yl}amino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl]-2-{4,4-dimethyl-9-oxo-7-thia-10,11-diazatricyclo[6.4.0.02,6]dodeca-1(8),2(6),11-trien-10-yl}pyridine-3-carb aldehydeYield 33.5%

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 962WaterSolventHCID 6342AcetonitrileSolvent

Conditions

Temperature
95 °C

Procedure

A 50-mL single-neck round-bottomed flask equipped with a magnetic stirrer and a reflux condenser was charged with 335b (240 mg, 0.60 mmol), 4-chloro-2-{4,4-dimethyl-9-oxo-7-thia-10,11-diazatricyclo[6.4.0.02,6]dodeca-1(8),2(6),11-trien-10-yl}pyridine-3-carbaldehyde 282i (107.7 mg, 0.30 mmol), Pd(dppf)Cl2 (24.5 mg, 0.030 mmol), K3PO4 (127.2 mg, 0.60 mmol), sodium acetate (49.2 mg, 0.60 mmol), water (0.5 mL), and acetonitrile (10 mL). After three cycles of vacuum/nitrogen flush, the mixture was heated at 95° C. for 1 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 335c as a brown solid (60 mg, 22%, two steps). MS-ESI: [M+H]+ 598.2.

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/nitrogen 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 30:1 dichloromethane/methanol

Sources & evidence

ORD record
ord-a911091289a641cc8c32ed18a4ae7ebd
Source dataset
uspto-grants-2016_01
Patent number
US09238655B2

Reaction notes

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