反应详情

By the procedure of Example 4, 0.62 g of the sulfonamide of Example 3 was reacted with 0.57 g of phenyl (4-methoxy-6-methyl-1,3,5-triazin-2-yl)carbamate and 0.33 g of DBU in 10 ml of p-dioxane. After stirring two hours at room temperature the solution was diluted with about 75 ml of water and acidified with concentrated hydrochloric acid (red to litmus). Following filtration, the residue was washed with 1×5 ml of warm ethyl acetate to give 0.28 g of the subject compound; m.p. 175°-177° C.

1. filtrationfiltration
2. washthe residue was washed with 1×5 ml of warm ethyl acetate