4-Hydroxybenzoic Acid → 3-Butyl-8-chloro-1-{4-[5-(4-hydroxyphenyl)-1,2,4-oxadiazol-3-yl]butyl}-3,7-dihydro-1H-purine-2,6-dione

Participants

Reaction Conditions

Reaction Steps

4-Hydroxybenzoic acid (35 mg, 0.25 mmol) and CDl (45 mg, 0.28 mmol) were stirred in anhydrous DMSO (0.9 ml) at rt for 1 h. (1Z)-5-(3-Butyl-8-chloro-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-1-yl)-N-hydroxypentanimidamide (100 mg, 0.28 mmol) was added and the mixture was stirred at 90° C. for 16 h. The mixture was purified by MDAP to give the title compound as a white solid (5 mg, 4%).

Provenance & Evidence