Sodium Thiosulfate → HCID 66612246, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of 0.49 g of 1-methyl-2-(3-methylthiopyridine-4-yl)-5-trifluoromethyl-1H-benzimidazole, 5 ml of methanol and 10 ml of water was added 0.65 g of sodium periodate under ice cool, then, the mixture was stirred for 1 hour at 40° C. After cooling down to room temperature, a saturated sodium hydrogen carbonate aqueous solution and a saturated sodium thiosulfate aqueous solution were poured, and the mixture was extracted three times with chloroform. The combined organic layers were dried over magnesium sulfate, then, concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to obtain 0.48 g of 2-(3-methanesulfinylpyridin-4-yl)-1-methyl-5-trifluoromethyl-1H-benzimidazole (hereinafter, referred to as present active compound 18).

Provenance & Evidence