Cesium carbonate → HCID 59708490, compound

Participants

Reaction Steps

Under an argon atmosphere 315 mg (3-fluoro-phenyl)-(5-oxo-2-piperazin-1-yl-6,7-dihydro-5H-5λ4-thieno[3,2-d]pyrimidin-4-yl)-amine, 165 mg 4-bromo-benzonitrile, 21 mg palladium(II)acetate, 80 mg Xantphos and 415 mg caesium carbonate are stirred in 2.50 ml degassed toluene for 24 hours at 80° C. After cooling the reaction mixture is extracted with ethyl acetate and saturated sodium chloride solution. The organic phase is dried and evaporated to dryness. The residue is purified by preparative HPLC (method A). 146 mg of the product (36%) are obtained. HPLC (method A): RT=3.83 min.

Provenance & Evidence