反应详情

A homogeneous solution of 17.5 mg of diethyl N-(4-[2-(2-acetamido-4-hydroxy-5,6,7,8-tetrahydropyrido[2,3-d]pyrimidin-6-yl)propyl]benzoyl)-L-glutamate in 2 mL of methanolic sodium hydroxide solution was allowed to stand at room temperature for 72 hours. Most of the solvent was then removed under reduced pressure and the mixture was diluted with water and acidified with acetic acid. The precipitate was collected by filtration, washed with water, and dried under reduced pressure (0.1 mm) for 48 hours to give 9.7 mg (67%) of the title compound, which may be alternatively named as 5,10-dideaza-10-methyl-5,6,7,8-tetrahydrofolic acid. mp>250° C., NMR delta 0.87-0.88(brs, 1H each), 1-2.8(m, 11H), 3.13(m, 1H), 4.59(m, 1H), 6.96(d, 2H, J=9 Hz), 7.34(d, 2H, J=9 Hz.

1. customMost of the solvent was then removed under reduced pressure
2. additionthe mixture was diluted with water
3. filtrationThe precipitate was collected by filtration
4. washwashed with water
5. customdried under reduced pressure (0.1 mm) for 48 hours