反应详情

2.88 ml of 2M sodium hydroxide are added to a solution of 1.62 g of ethyl [1-methyl-4-(morpholin-4-yl)-6-oxo-1,6-dihydropyrimidin-2-yl]acetate prepared in stage 1 of Example 67, in 20 ml of tetrahydrofuran. The reaction mixture is stirred for 48 hours at ambient temperature. The precipitate formed is filtered through sintered glass, washed with ethyl acetate and rinsed several times with ethyl ether. The solid obtained is then dried in a rotary evaporator. 730 mg of sodium [1-methyl-4-(morpholin-4-yl)-6-oxo-1,6-dihydropyrimidin-2-yl]acetate are obtained in the form of a white solid, the characteristics of which are the following:

1. customThe precipitate formed
2. filtrationis filtered through sintered glass
3. washwashed with ethyl acetate
4. washrinsed several times with ethyl ether
5. customThe solid obtained
6. customis then dried in a rotary evaporator