Potassium Phosphate, Tribasic → 4-Fluoro-2-(6-(4-(4-(oxetan-3-yl)piperazin-1-yl)phenylamino)-9-((2-(trimethylsilyl)ethoxy)methyl)-9H-purin-2-yl)-6-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)benzyl Acetate

HRID 1024079Notes

Reaction equation

HRID 1024079 reaction equation
I[C:2]1[N:10]=[C:9]2[C:5]([N:6]=[CH:7][N:8]2[CH2:11][O:12][CH2:13][CH2:14][Si:15]([CH3:18])([CH3:17])[CH3:16])=[C:4]([NH:19][C:20]2[CH:25]=[CH:24][C:23]([N:26]3[CH2:31][CH2:30][N:29]([CH:32]4[CH2:35][O:34][CH2:33]4)[CH2:28][CH2:27]3)=[CH:22][CH:21]=2)[N:3]=1.[C:36]([O:39][CH2:40][C:41]1[C:46](B2OC(C)(C)C(C)(C)O2)=[CH:45][C:44]([F:56])=[CH:43][C:42]=1[N:57]1[CH2:69][CH2:68][N:60]2[C:61]3[CH2:62][CH2:63][CH2:64][CH2:65][C:66]=3[CH:67]=[C:59]2[C:58]1=[O:70])(=[O:38])[CH3:37].[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>[C:36]([O:39][CH2:40][C:41]1[C:42]([N:57]2[CH2:69][CH2:68][N:60]3[C:61]4[CH2:62][CH2:63][CH2:64][CH2:65][C:66]=4[CH:67]=[C:59]3[C:58]2=[O:70])=[CH:43][C:44]([F:56])=[CH:45][C:46]=1[C:2]1[N:10]=[C:9]2[C:5]([N:6]=[CH:7][N:8]2[CH2:11][O:12][CH2:13][CH2:14][Si:15]([CH3:18])([CH3:17])[CH3:16])=[C:4]([NH:19][C:20]2[CH:25]=[CH:24][C:23]([N:26]3[CH2:31][CH2:30][N:29]([CH:32]4[CH2:35][O:34][CH2:33]4)[CH2:28][CH2:27]3)=[CH:22][CH:21]=2)[N:3]=1)(=[O:38])[CH3:37]

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 517045Sodium AcetateHCID 580442052-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-4-fluoro-6-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)benzyl AcetateHCID 866841532-Iodo-N-(4-(4-(oxetan-3-yl)piperazin-1-yl)phenyl)-9-((2-(trimethylsilyl)ethoxy)methyl)-9H-purin-6-amine

Product 1

HCID 866841544-Fluoro-2-(6-(4-(4-(oxetan-3-yl)piperazin-1-yl)phenylamino)-9-((2-(trimethylsilyl)ethoxy)methyl)-9H-purin-2-yl)-6-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)benzyl AcetateYield 72%

Reagents, catalysts & solvents 3

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

Procedure

A 50-mL single-neck round-bottomed flask equipped with a magnetic stirrer and a reflux condenser was charged with 117f (607 mg, 1.0 mmol), 4-fluoro-2-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl acetate 101k (482 mg, 1.0 mmol), Pd(dppf)Cl2 (82 mg, 0.10 mmol), K3PO4 (424 mg, 2.0 mmol), sodium acetate (164 mg, 2.0 mmol), water (0.5 mL), and acetonitrile (20 mL). After three cycles of vacuum/argon flush, the mixture was heated at reflux 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 117g as yellow solid (600 mg, 72%). MS-ESI: [M+H]+ 836.5

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. temperaturethe mixture was heated
  4. temperatureat reflux for 2 h
  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-b0413c09db3e42768dc822ad223064e9
Source dataset
uspto-grants-2014_05
Patent number
US08722676B2

Reaction notes

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