Potassium Phosphate, Tribasic → 2-(5-(1-(2-(tert-Butyldimethylsilyloxy)ethyl)-5-methyl-1H-pyrazol-3-ylamino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-6-(1-oxo-3,4,6,7,8,9-hexahydro-pyrazino[1,2-a]indol-2(1H)-yl)benzyl acetate

HRID 1918914Notes

Reaction equation

HRID 1918914 reaction equation
Br[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:15]=[C:14]([CH3:16])[N:13]([CH2:17][CH2:18][O:19][Si:20]([C:23]([CH3:26])([CH3:25])[CH3:24])([CH3:22])[CH3:21])[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[CH:7]=1.[C:27]([O:30][CH2:31][C:32]1[C:37](B2OC(C)(C)C(C)(C)O2)=[CH:36][CH:35]=[CH:34][C:33]=1[N:47]1[CH2:59][CH2:58][N:50]2[C:51]3[CH2:52][CH2:53][CH2:54][CH2:55][C:56]=3[CH:57]=[C:49]2[C:48]1=[O:60])(=[O:29])[CH3:28].CC(O[Na])=O.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>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].O>[C:27]([O:30][CH2:31][C:32]1[C:33]([N:47]2[CH2:59][CH2:58][N:50]3[C:51]4[CH2:52][CH2:53][CH2:54][CH2:55][C:56]=4[CH:57]=[C:49]3[C:48]2=[O:60])=[CH:34][CH:35]=[CH:36][C:37]=1[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:15]=[C:14]([CH3:16])[N:13]([CH2:17][CH2:18][O:19][Si:20]([C:23]([CH3:26])([CH3:25])[CH3:24])([CH3:22])[CH3:21])[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[CH:7]=1)(=[O:29])[CH3:28]

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 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 866612355-Bromo-3-(1-(2-(tert-butyldimethylsilyloxy)ethyl)-5-methyl-1H-pyrazol-3-ylamino)-1-methylpyridin-2(1H)-oneHCID 178418247HCID 178418247, compound

Product 1

HCID 866612362-(5-(1-(2-(tert-Butyldimethylsilyloxy)ethyl)-5-methyl-1H-pyrazol-3-ylamino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-6-(1-oxo-3,4,6,7,8,9-hexahydro-pyrazino[1,2-a]indol-2(1H)-yl)benzyl acetateYield 18%

Reagents, catalysts & solvents 3

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

Procedure

A mixture of 161a (750 mg, 1.7 mmol), 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 114a (882 mg, 1.9 mmol), CH3COONa (309 mg, 3.8 mmol), PdCl2(dppf) (153 mg, 0.19 mmol) and K3PO4 (1 g, 3.8 mmol) suspended in CH3CN (30 mL) and H2O (2 mL) was heated at 110° C. for 12 h under argon atmosphere. After reaction the mixture was evaporated and the residue was purified by reverse phase Combi-flash eluting with 0.3% NH4HCO3 in 1:4 water/CH3CN to give 161b as a brown solid (210 mg, 18%). LCMS: [M+H]+ 699.

Workup

  1. customAfter reaction the mixture
  2. customwas evaporated
  3. customthe residue was purified by reverse phase Combi-flash
  4. washeluting with 0.3% NH4HCO3 in 1:4 water/CH3CN

Sources & evidence

ORD record
ord-da05000382a347e0bbc77d6bf278fe5f
Source dataset
uspto-grants-2013_12
Patent number
US08618107B2

Reaction notes

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