反应详情

2.0 g of (±)-cis-2-(4-methoxyphenyl)-3-hydroxy-5-[2-(methylamino)ethyl]-2,3-dihydro-1,5-benzothiazepin-4(5H)-one and 0.96 g of ethyl iodide are dissolved in 20 ml of dimethylformamide, and 1.16 g of potassium carbonate are added thereto. The mixture is stirred at room temperature overnight. After the reaction, the mixture is poured into ice-water and then extracted with ethyl acetate. The extract is washed with water, dried and then condensed, whereby (±)-cis-2-(4-methoxyphenyl)-3-hydroxy-5-[2-(N-methyl-N-ethylamino)ethyl]-2,3-dihydro-1,5-benzothiazepin-4(5H)-one is obtained as a yellow oil.

1. customAfter the reaction
2. extractionextracted with ethyl acetate
3. washThe extract is washed with water
4. customdried
5. customcondensed