Tetramethyltin → 3-(5-(4-chlorobenzyl)-1,7-dimethyl-2,4-dioxo-1H-pyrrolo[3,2-d]pyrimidin-3 (2H,4H,5H)-yl)propyl acetate

HRID 60358Notes

Reaction equation

HRID 60358 reaction equation
[C:1]([O:4][CH2:5][CH2:6][CH2:7][N:8]1[C:13](=[O:14])[C:12]2[N:15]([CH2:19][C:20]3[CH:25]=[CH:24][C:23]([Cl:26])=[CH:22][CH:21]=3)[CH:16]=[C:17](Br)[C:11]=2[N:10]([CH3:27])[C:9]1=[O:28])(=[O:3])[CH3:2].[CH3:29][Sn](C)(C)C>CN(C=O)C.CC(=O)OCC.O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[C:1]([O:4][CH2:5][CH2:6][CH2:7][N:8]1[C:13](=[O:14])[C:12]2[N:15]([CH2:19][C:20]3[CH:25]=[CH:24][C:23]([Cl:26])=[CH:22][CH:21]=3)[CH:16]=[C:17]([CH3:29])[C:11]=2[N:10]([CH3:27])[C:9]1=[O:28])(=[O:3])[CH3:2]

Participants

7

Reactant 2

HCID 11661TetramethyltinHCID 118863786HCID 118863786, compound

Product 1

HCID 1188637913-(5-(4-chlorobenzyl)-1,7-dimethyl-2,4-dioxo-1H-pyrrolo[3,2-d]pyrimidin-3 (2H,4H,5H)-yl)propyl acetateYield 92.8%

Reagents, catalysts & solvents 4

HCID 178418476HCID 178418476, compoundCatalystHCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 3-(7-bromo-5-(4-chlorobenzyl)-1-methyl-2,4-dioxo-1H-pyrrolo[3,2-d]pyrimidin-3(2H,4H,5H)-yl)propyl acetate (50 mg, 0.107 mmol) in DMF (2 mL) was added tetramethylstannane (38.2 mg, 0.214 mmol) and Pd(PPh3)2Cl2 (10 mg). The reaction was heated at 120° C. (MW) for 45 min, cooled to RT then diluted with EA (5 mL) and water (5 mL). The organic layer was dried over Na2SO4 and concentrated to a residue which was purified by chromatography eluted with PE/EA (5:1 to 1:1) to give 3-(5-(4-chlorobenzyl)-1,7-dimethyl-2,4-dioxo-1H-pyrrolo[3,2-d]pyrimidin-3(2H,4H,5H)-yl)propyl acetate (40 mg, 92.8% yield) as an oil. LCMS: MH+ 404 and TR=1.630 min. Used without further purification.

Workup

  1. temperatureThe reaction was heated at 120° C. (MW) for 45 min
  2. dry with materialThe organic layer was dried over Na2SO4
  3. concentrationconcentrated to a residue which
  4. customwas purified by chromatography
  5. washeluted with PE/EA (5:1 to 1:1)

Sources & evidence

ORD record
ord-1d9493bbeb7e45e9a07d2e09fb75e7fc
Source dataset
uspto-grants-2016_09
Patent number
US09440983B2

Reaction notes

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