反应详情

The procedure is similar to that described in Example 3, but starting with 2-amino-7-methoxynaphthyridine (3.5 g), 3-acetoxybenzoyl chloride (4.4 g) and anhydrous pyridine (40 cc). The reaction mixture is poured into water (400 cc) and the precipitate obtained is separated by filtration and then washed with water (6×100 cc) and dried in the air. On recrystallization from ethanol (140 cc) of the product thereby obtained, N-(7-methoxy-1,8-naphthyridin2-yl)-3-acetoxybenzamide (5.3 g), m.p. 172° C., is obtained.

1. customthe precipitate obtained
2. customis separated by filtration
3. washwashed with water (6×100 cc)
4. customdried in the air
5. customOn recrystallization from ethanol (140 cc) of the product
6. customthereby obtained