Sodium Acetate → 2-(5-(5-Fluoropyridin-2-ylamino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-6-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)benzyl Acetate

HRID 1918888Notes

Reaction equation

HRID 1918888 reaction equation
[C:1]([O:4][CH2:5][C:6]1[C:11](B2OC(C)(C)C(C)(C)O2)=[CH:10][CH:9]=[CH:8][C:7]=1[N:21]1[CH2:33][CH2:32][N:24]2[C:25]3[CH2:26][CH2:27][CH2:28][CH2:29][C:30]=3[CH:31]=[C:23]2[C:22]1=[O:34])(=[O:3])[CH3:2].Br[C:36]1[CH:37]=[C:38]([NH:44][C:45]2[CH:50]=[CH:49][C:48]([F:51])=[CH:47][N:46]=2)[C:39](=[O:43])[N:40]([CH3:42])[CH:41]=1.CC([O-])=O.[Na+]>CC#N.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:1]([O:4][CH2:5][C:6]1[C:7]([N:21]2[CH2:33][CH2:32][N:24]3[C:25]4[CH2:26][CH2:27][CH2:28][CH2:29][C:30]=4[CH:31]=[C:23]3[C:22]2=[O:34])=[CH:8][CH:9]=[CH:10][C:11]=1[C:36]1[CH:37]=[C:38]([NH:44][C:45]2[CH:50]=[CH:49][C:48]([F:51])=[CH:47][N:46]=2)[C:39](=[O:43])[N:40]([CH3:42])[CH:41]=1)(=[O:3])[CH3:2]

Participants

6

Reactant 3

HCID 517045Sodium AcetateHCID 580438772-(2-(Acetoxymethyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1(2H)-oneHCID 580442815-Bromo-3-(5-fluoropyridin-2-ylamino)-1-methylpyridin-2(1H)-one

Product 1

HCID 680965952-(5-(5-Fluoropyridin-2-ylamino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-6-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)benzyl AcetateYield 72%

Reagents, catalysts & solvents 2

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

Conditions

Temperature
110 °C

Procedure

A sealed tube was charged with the mixture of 2-(1-oxo-3,4,6,7,8,9-hexa-hydropyrazino[1,2-a]indol-2(1H)-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl acetate 114a (232 mg, 0.5 mmol), 148a (148 mg, 0.50 mmol), Pd(dppf)Cl2 (25 mg, 0.03 mmol), K3PO4.3H2O(266 mg, 1.0 mmol), and NaOAc (82 mg, 1.0 mmol) in CH3CN (18 mL). The system was evacuated and refilled with N2. The reaction mixture was heated at 110° 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 flash column chromatography eluting with 30:1 DCM/MeOH to afford 148b as a yellow solid (200 mg, 72%). MS: [M+H]+ 556.

Workup

  1. customThe system was evacuated
  2. additionrefilled with N2
  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 flash column chromatography
  7. washeluting with 30:1 DCM/MeOH

Sources & evidence

ORD record
ord-2247ed9283e147b09f73514a63a5e6d2
Source dataset
uspto-grants-2013_12
Patent number
US08618107B2

Reaction notes

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