2-Chloro-1-propyl-8-[1-(3-trifluoromethyl-benzyl)-1H-pyrazol-4-yl]-1,7-dihydro-purin-6-one → 2-Cyclopropyl-1-propyl-8-[1-(3-trifluoromethyl-benzyl)-1H-pyrazol-4-yl]-1,7-dihydro-purin-6-one

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-Chloro-1-propyl-8-[1-(3-trifluoromethyl-benzyl)-1H-pyrazol-4-yl]-1,7-dihydro-purin-6-one (prepared using same procedure as given in Example 2) (0.1 g, 0.23 mmol), Pd(PPh3)4 (0.319 g, 0.28 mmol) and cyclopropyl zinc chloride solution (10 ml, 0.5 M solution) were heated at 100° C. for 30 minutes. Reaction mixture was cooled, diluted with DCM (10 ml). Organic layer washed with brine (2×10 ml), dried over Na2SO4, evaporated and purified by preparative TLC to obtain pure 2-Cyclopropyl-1-propyl-8-[1-(3-trifluoromethyl-benzyl)-1H-pyrazol-4-yl]-1,7-dihydro-purin-6-one as white solid (23 mg, 23%)

Provenance & Evidence