Potassium Phosphate, Tribasic → HCID 86661238, compound

HRID 1918918Notes

Reaction equation

HRID 1918918 reaction equation
Br[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:15]=[CH:14][N:13]([CH2:16][CH2:17][O:18][Si:19]([C:22]([CH3:25])([CH3:24])[CH3:23])([CH3:21])[CH3:20])[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[CH:7]=1.[C:26]([O:29][CH2:30][C:31]1[C:36](B2OC(C)(C)C(C)(C)O2)=[CH:35][CH:34]=[CH:33][C:32]=1[N:46]1[CH2:58][CH2:57][N:49]2[C:50]3[CH2:51][CH2:52][CH2:53][CH2:54][C:55]=3[CH:56]=[C:48]2[C:47]1=[O:59])(=[O:28])[CH3:27].C([O-])(=O)C.[Na+].[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:26]([O:29][CH2:30][C:31]1[C:32]([N:46]2[CH2:58][CH2:57][N:49]3[C:50]4[CH2:51][CH2:52][CH2:53][CH2:54][C:55]=4[CH:56]=[C:48]3[C:47]2=[O:59])=[CH:33][CH:34]=[CH:35][C:36]=1[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:15]=[CH:14][N:13]([CH2:16][CH2:17][O:18][Si:19]([C:22]([CH3:25])([CH3:24])[CH3:23])([CH3:21])[CH3:20])[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[CH:7]=1)(=[O:28])[CH3:27]

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 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 86661237HCID 86661237, compound

Product 1

HCID 86661238HCID 86661238, compoundYield 29%

Reagents, catalysts & solvents 3

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

Procedure

A mixture of 163a (800 mg, 1.88 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 (1.3 g, 2.82 mmol), sodium acetate (308 mg, 3.76 mmol), PdCl2(dppf) (153 mg, 0.188 mmol) and K3PO4 (1 g, 3.76 mmol) suspended in CH3CN (50 mL) and water (3 mL) was heated at 110° C. for 12 h under argon atmosphere. The mixture was then evaporated and the residue was purified by reverse phase Combi-flash eluting with 0.3% NH4HCO3 in 1:5 water/CH3CN to give 163b as a brown solid (350 mg, 29%). MS: (M+H)+ 685

Workup

  1. customThe mixture was then evaporated
  2. customthe residue was purified by reverse phase Combi-flash
  3. washeluting with 0.3% NH4HCO3 in 1:5 water/CH3CN

Sources & evidence

ORD record
ord-d8d576087549450eb04b9c5e53fdd078
Source dataset
uspto-grants-2013_12
Patent number
US08618107B2

Reaction notes

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