Water → HCID 86697949, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 253 mg of methyl 2-(methylsulfonyl)-7-{[(trifluoromethyl)sulfonyl]oxy}thieno[3,2-d]pyrimidine-6-carboxylate 5 (example 2), 110 mg of benzeneboronic acid, 392 mg of caesium carbonate and 49 mg of dichloropalladium(II)bis(diphenylphosphino)ferocene in 3.5 ml of toluene is heated at 90° C. for 30 min. The mixture is cooled and poured into water. The aqueous phase is extracted three times with dichloromethane. The organic phases are dried over magnesium sulfate, filtered, and then concentrated under vacuum. The residue is purified on 25 g of silica, elution being carried out with dichloromethane, so as to obtain 145 mg of methyl 2-(methylsulfonyl)-7-phenylthieno[3,2-d]pyrimidine-6-carboxylate in the form of a beige solid.

Provenance & Evidence