Sodium Thiosulfate → HCID 18425472, compound

Participants

Reaction Steps

To a solution of 7-benzylthio-3-(2-chlorophenyl)-1-(piperidin-4-yl)-3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one (920 mg, 1.62 mmol) in dichloromethane (16 mL) cooled to 0° C. was added 3-chloroperbenzoic acid (403 mg, 1.64 mmol). After an hour at room temperature 5 mL of 10% sodium thiosulphate was added. After 10 minutes, the dichloromethane layer was separated and washed with 10% potassium carbonate and brine, dried over magnesium sulfate, concentrated in vacuo to give 650 mg of 3-(2-chlorophenyl)-7-benzylsulfinyl-1-(piperidin-4-yl)-3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one as a white foam.

Provenance & Evidence