Morpholine → HCID 59395644, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 8-chloro-7-(2-propen-1-yl)-1-{4-[3-(2-pyridinyl)-1,2,4-oxadiazol-5-yl]butyl}-3,7-dihydro-1H-purine-2,6-dione (40 mg, 0.09 mmol) in DMF (3 ml) was treated with potassium carbonate (15 mg, 0.11 mmol) and 1-iodopropane (19 mg, 0.11 mmol). The mixture was heated at 40° C. for 3 h then at 70° C. for a further 3 h. The mixture was cooled and degassed by the successive application of vacuum and nitrogen gas. The mixture was then treated with a solution of tetrakis(triphenylphosphine)palladium(0) (10 mg, 0.009 mmol) and morpholine (0.1 ml, 1.2 mmol) and then stirred overnight. The mixture was evaporated and partitioned between chloroform (2 ml) and water (2 ml). The aqueous phase was extracted with further chloroform (2 ml) and the combined organics evaporated and the residue dissolved in methanol (2 ml). The solution was applied to a 1 g aminopropyl SPE and eluted with methanol and then with 5% acetic acid in methanol. Product-containing fractions were pooled and evaporated and the product further purified by MDAP to reveal 8-chloro-3-propyl-1-{4-[3-(2-pyridinyl)-1,2,4-oxadiazol-5-yl]butyl}-3,7-dihydro-1H-purine-2,6-dione (1.4 mg) as a white solid.

Provenance & Evidence