反应详情

300 mg of 3-methylsulfonyl-5-(cyclohexyl)methyl-1,2,4-thiadiazole and 89 mg of 2-butyn-1-ol were dissolved in 2.5 g of N,N-dimethylformamide, 55 mg of sodium hydride (60% in oil) was added thereto, and the reaction mixture was stirred for 30 minutes under ice-cooling. Then, the reaction mixture was added to saturated brine, and extracted with t-butyl methyl ether. The organic layer was concentrated under reduced pressure, and the residue obtained was subjected to silica gel column chromatography to give 222 mg of 5-(cyclohexyl)methyl-3-(2-butynyloxy)-1,2,4-thiadiazole (hereinafter referred to as the present invention compound (5)).

1. temperaturecooling
2. extractionextracted with t-butyl methyl ether
3. concentrationThe organic layer was concentrated under reduced pressure
4. customthe residue obtained