Ammonia → {2-[4-(4-chloro-phenyl)-piperazin-1-yl]-5-oxo-6,7-dihydro-5H-5lambda4-thieno[3,2-d]pyrimidin-4-yl}-(3-morpholin-ylmethyl-phenyl)-amine

Participants

Reaction Conditions

Reaction Steps

313.80 mg {2-[4-(4-chloro-phenyl)-piperazin-1-yl]-6,7-dihydro-thieno[3,2-d]pyrimidin-4-yl}-(3-morpholin-4-ylmethyl-phenyl)-amine are placed in 2.70 ml glacial acetic acid and cooled to 10° C. 57 μl hydrogen peroxide (35%) are added dropwise, then the mixture is stirred for 0.25 hours. Then the reaction mixture is stirred in 30 ml ice water and made basic with cold ammonia solution. The precipitate formed is suction filtered, washed with water and dried. The crude product is extracted with petroleum ether and diethyl ether, suction filtered and dried. The product is purified by chromatography (10 g Chromabond SiOH-cartridge). 140.0 mg of the product are obtained as a powder (m.p 244°-248° C.).

Provenance & Evidence