申请人:Yamazaki Koichi
公开号:US20110166351A1
公开(公告)日:2011-07-07
A novel method for preparing 5-[2-(methylthio)ethoxy]pyrimidin-2-amine useful as a regent or raw material for manufacture of medicaments, agricultural chemicals, and industrial products, which comprises alkanoylating the amino group of a 2-amino-4-alkoxypyrimidine, then converting the resultant into a 4-hydroxypyrimidine compound by a treatment with anhydrous aluminum chloride, further etherifying the 4-hydroxypyrimidine compound by a reaction with a 2-haloethyl methyl sulfide in the presence of a base, and removing the alkanoyl group to obtain 5-[2-(methylthio)ethoxy]pyrimidin-2-amine.
一种制备5-[2-(甲硫基)乙氧基]嘧啶-2-胺的新方法,该方法可用于制造药物、农业化学品和工业产品的试剂或原料。该方法包括将2-氨基-4-烷氧基嘧啶的氨基基团进行烷酰化处理,然后通过与无水氯化铝处理将其转化为4-羟基嘧啶化合物,进一步在碱的存在下通过与2-卤代乙基甲硫醚反应将4-羟基嘧啶化合物进行醚化,最后去除烷酰基以获得5-[2-(甲硫基)乙氧基]嘧啶-2-胺。