反应详情

To a stirred solution of 6-[4-(2-acetoxypropionylamino)phenyl]-5-methyl-4,5-dihydro-1,2,4-triazin-3(2H)-one (0.94 g) in methanol (6 ml) was added dropwise 1N sodium hydroxide (3 ml) under ice cooling. The mixture was stirred for 15 minutes after adding water. The resulting precipitates were collected by filtration, washed with water and dried to give 0.61 g of 6-(4-lactoylaminophenyl)-5-methyl-4,5-dihydro-1,2,4-triazin-3(2H)-one.

1. customThe resulting precipitates
2. filtrationwere collected by filtration
3. washwashed with water
4. customdried