Formic Acid → HCID 57634214, compound

Participants

Reaction Steps

To a 100 mL round-bottomed flask was added tert-butyl 4-bromo-5-((3-(diethylcarbamothioylthio)pyridin-4-yl)carbamoyl)thiazol-2-ylcarbamate (1.0 g, 1.8 mmol) and a 1:1 mixture of TFA (0.14 mL, 1.8 mmol) and DCM (0.12 mL, 1.8 mmol) with a few drops of triethylsilane. The solution was then stirred at room temperature. LCMS indicated that the reaction was complete after about 1 hour. The solvents were removed, and the resulting oil was used without further manipulation. To a 100 mL round-bottomed flask was added 4-(2-amino-4-bromothiazole-5-carboxamido)pyridin-3-yl diethylcarbamodithioate (0.82 g, 1.8 mmol) and formic acid (0.070 mL, 1.8 mmol), and the mixture was heated at 100° C. for about 2 hours. LCMS indicated no remaining starting material, so the solvent was removed and 2 N ammonia in MeOH was added. An orange precipitate formed which was filtered and determined to be the product N-(4-bromo-5-(thiazolo[5,4-c]pyridin-2-yl)thiazol-2-yl)formamide.

Provenance & Evidence