反应详情

To sodium hydride (0.63 g, 15.72 mmol) in 30 mL tetrahydrofuran at 0° C. was added ethyl glycolate (1.15 mL, 12.09 mmol) over 10 minutes. The resulting alkoxide was then added to 2-methylthio-4-chloro-5-nitro-6-(3-dimethylaminocarbonylphenoxy)pyrimidine, a compound of formula (C), (4.46 g., 12.09 mmol), dropwise at 0° C. over 5 minutes. After 1 hours, the reaction mixture was warmed to ambient temperature and stirred for an additional 2 hours. The volatiles were evaporated to yield 2.55 g (48% yield) of 2-methylthio-4-(ethoxycarbonyl)methoxy-5-nitro-6-(3-dimethylaminocarbonylphenoxy)pyrimidine, a compound of formula (Q), as a yellow oil.

1. customThe volatiles were evaporated