Disclosed is a process for preparing 9-[4-acetoxy-3-(acetoxymethyl)but-1-yl]-2-aminopurine (called Famciclovir), a drug of purine derivatives having antiviral activity. This process comprises reacting 2-aminopurine with 2-acetoxymethyl-4-bromobut-1-yl-acetate in the presence of thallium (I) ethoxide to give the desired compound. According to this process, the desired compound can be prepared in very high selectivity and purity under mild reaction conditions.
揭示了一种制备9-[4-乙酰氧基-3-(乙酰氧甲基)丁-1-基]-
2-氨基嘌呤(称为
法昔洛韦)的过程,这是一种具有抗病毒活性的
嘌呤衍
生物药物。该过程包括在
钯(I)
乙醇醚存在下,将
2-氨基嘌呤与2-乙酰氧甲基-4-
溴丁-1-基
乙酸酯反应,得到所需的化合物。根据这个过程,在温和的反应条件下可以高度选择性和纯度地制备所需的化合物。