Water → HCID 53911951, compound

Participants

Reaction Steps

2-{3-Allyloxy-4-[3-(1-piperidinyl)carbonylacryloyl]phenoxymethylcarbonylamino}benzothiazole (0.55 g) is dissolved in methanol (70 ml) and dioxane (40 ml), and thereto are added 10% palladium-carbon (0.15 g), p-toluenesulfonic acid monohydrate (70 mg) and water (3 ml). The mixture is subjected to deaeration, and the mixture is refluxed under nitrogen atmosphere overnight. The mixture is filtered through a cerite pad, and to the filtrate is added water-methylene chloride, and the mixture is separated, and dried over sodium sulfate. The residue is crystallized from ethanol-methylene chloride, and recrystallized from dimethylformamide-ethanol to give 2-{3-hydroxy-4-[3-(1-piperidinyl)carbonylacryloyl]phenoxymethylcarbonylamino}benzothiazole (120 mg).

Provenance & Evidence