反应详情

To a cold (0° C.-5° C.) solution of 1.2 g (2.14 mmol) of 6-amino-4-[3-chloro-4-(1-methyl-1H-imidazole-2-ylsulfanyl)phenylamino]-7-(4-pyrrolidin-1-yl-piperidin-1-yl)quinoline-3-carbonitrile and 3.6 ml (22.6 mmol) of N,N-diethyl aniline in 18 mL of 1-methyl 2-pyrrolidinone is added dropwise 1.6 ml (21.2 mmol) of acetyl chloride. The resulting mixture is stirred at room temperature for 4 hours. The solvent is removed in vacuo to yield a residue, which is triturated with ether. A saturated solution of sodium bicarbonate is added to the resulting solid and the mixture is stirred, collected by filtration and dried in vacuo. Purification by silica gel chromatography (gradient 95:5methylene chloride/methanol to 4:1 methylene chloride/methanol) gives 738 mg of N-acetyl-N-[4-[3-chloro-4-(1-methyl-1H-imidazole-2-ylsulfanyl)-phenylamino]-3-cyano-7-(4-pyrrolidin-1-yl-piperidin-1-yl)quinolin-6-yl]acetamide as a beige solid, mp 245-247° C.

1. customThe solvent is removed in vacuo
2. customto yield a residue, which
3. customis triturated with ether
4. additionA saturated solution of sodium bicarbonate is added to the resulting solid
5. stirringthe mixture is stirred
6. filtrationcollected by filtration
7. customdried in vacuo
8. customPurification by silica gel chromatography (gradient 95:5methylene chloride/methanol to 4:1 methylene chloride/methanol)