Sulfuric Acid → HCID 86697958, compound

Participants

Reaction Steps

24 mg of sodium bromide and 18 mg of sodium bromate are added, with stirring, to a suspension of 55 mg of methyl 7-(6-methoxypyridin-2-yl)-2-(methylsulfanyl)thieno[3,2-d]pyrimidine-6-carboxylate, prepared by analogy to the method described in example 5, (at 50%) in 2 ml of water, and then 6.5 μl of concentrated sulfuric acid are slowly added. The yellow suspension rapidly turns orange. After 2 h 30 minutes of stirring at ambient temperature, the yellow suspension is filtered through a number 4 sintered glass filter. The yellow solid is dried under vacuum so as to obtain 28 mg of methyl 7-(6-methoxypyridin-2-yl)-2-(methylsulfinyl)thieno[3,2-d]pyrimidine-6-carboxylate.

Provenance & Evidence