Dichloromethane → HCID 23371588, compound

Participants

Reaction Steps

1-[(4-Methoxyphenyl)carbonylmethyl]-4-(3H,6H-1,3,4-thiadiazin-2-one-5-yl)pyridinium bromide (760 mg, 1.8 mmol) was dissolved in methanol (8 ml) and gradually added with sodium borohydride (680 mg, 18 mmol) under ice-cooling and then stirred at room temperature overnight. The solvent was removed under reduced pressure. The residue obtained was added with dichloromethane, washed with water and dried over anhydrous magnesium sulfate. The residue obtained by evaporation was purified by column chromatography (dichloromethane-methanol=20:1) to obtain the titled compound (423 mg) as white crystals.

Provenance & Evidence