申请人:Mead Johnson & Company
公开号:US04286093A1
公开(公告)日:1981-08-25
A process for preparing 9-cyclohexyl-2-alkoxy-9H-adenine derivatives such as 9-cyclohexyl-2-n-propoxy-9H-adenine from 7-amino-5-(methylthio)[1,2,5]oxadiazolo[3,4-d]pyrimidine and 7-amino-5-(methylthio)[1,2,5]thiadiazolo[3,4-d]pyrimidine is described. Other aspects of the invention are directed to novel intermediates such as the compound 4-amino-6-(cyclohexylamino)-5-(formylamino)-2-(methylthio)pyrimidine.
本发明涉及一种制备9-环己基-2-烷氧基-9H-腺嘌呤衍生物,如9-环己基-2-n-丙氧基-9H-腺嘌呤的方法,该方法从7-氨基-5-(甲硫基)[1,2,5]噁唑并[3,4-d]嘧啶和7-氨基-5-(甲硫基)[1,2,5]噻唑并[3,4-d]嘧啶出发。本发明的其他方面涉及新型中间体,如化合物4-氨基-6-(环己基氨基)-5-(甲酰氨基)-2-(甲硫基)嘧啶。