Morpholine → 3-butyl-8-chloro-3,7-dihydro-1H-purine-2,6-dione

HRID 2386609Notes

Reaction equation

HRID 2386609 reaction equation
[CH2:1]([N:5]1[C:13]2[N:12]=[C:11]([Cl:14])[N:10](CC=C)[C:9]=2[C:8](=[O:18])[NH:7][C:6]1=[O:19])[CH2:2][CH2:3][CH3:4].N1CCOCC1>C1COCC1.CS(C)=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:1]([N:5]1[C:13]2[N:12]=[C:11]([Cl:14])[NH:10][C:9]=2[C:8](=[O:18])[NH:7][C:6]1=[O:19])[CH2:2][CH2:3][CH3:4]

Participants

6

Reactant 2

HCID 8083MorpholineHCID 592995823-butyl-8-chloro-7-(2-propen-1-yl)-3,7-dihydro-1H-purine-2,6-dione

Product 1

HCID 592995623-butyl-8-chloro-3,7-dihydro-1H-purine-2,6-dione

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 679Dimethyl SulfoxideSolventHCID 8028TetrahydrofuranSolvent

Procedure

A solution of 3-butyl-8-chloro-7-(2-propen-1-yl)-3,7-dihydro-1H-purine-2,6-dione (100 mg, 0.35 mmol) in anhydrous THF (4 ml) and anhydrous DMSO (0.4 ml) was treated with Pd(PPh3)4 (61 mg, 0.053 mmol). The mixture was degassed under gentle vacuum, morpholine (308 uL, 3.5 mmol) was added, and left to stir at rt under nitrogen for 4 hours. The yellow solution was partitioned between 2M HCl(aq) and EtOAc. The organic layer was separated, washed with brine, dried (MgSO4) and concentrated. The residue was taken up in MeOH and passed down an amino-propyl SPE (5 g), eluting with MeOH followed by 5% AcOH/MeOH. The product fractions were combined and concentrated in vacuo to afford the title compound as an off white solid (30 mg, 35%). NMR; δH (400 MHz, d6-DMSO) 0.89 (t, 3H, J=7.5 Hz), 1.23-1.34 (m, 2H), 1.55-1.65 (m, 2H), 3.85 (t, 2H, J=7 Hz), 11.17 (s, 1H), 14.37 (br.s, 1H); m/z 243.3 [MH+].

Workup

  1. additionwas added
  2. waitleft
  3. customThe yellow solution was partitioned between 2M HCl(aq) and EtOAc
  4. customThe organic layer was separated
  5. washwashed with brine
  6. dry with materialdried (MgSO4)
  7. concentrationconcentrated
  8. washeluting with MeOH
  9. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-a68419bb8c664dbdb09dbc9b88bc9644
Source dataset
uspto-grants-2012_09
Patent number
US08268839B2

Reaction notes

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