申请人:Japan Science and Technology Agency
公开号:EP1726597A1
公开(公告)日:2006-11-29
The purpose of the present invention is to develop a system for efficiently constituting cyanoethyl ethers under mild conditions and probability of the ethers as functional groups for imparting specific functions and to make a contribution to the production of novel functional nucleic acids.
The present invention relates to a nucleoside that is represented by the general formula (I) or a nucleotide derived therefrom:
wherein X and Y may be the same as or different from each other, and are hydrogen, optionally substituted silyl group, 4-methoxytrityl group, 4,4'-dimethoxytrityl group or a group represented by the general formula (II):
wherein R1 and R2 may be the same as or different from each other, representing an alkyl group having 1-7 carbon atoms such as diisopropyl, or they are united with each other to form a ring structure, R3 represents a protective group for a phosphoric acid such as 2-cyanoethyl; and B1 represents an optionally substituted pyrimidine or purine base.
本发明的目的是开发一种在温和条件下有效构成氰乙基醚的体系,并将醚作为赋予特定功能的官能团,为生产新型功能核酸做出贡献。
本发明涉及一种由通式(I)表示的核苷或由其衍生的核苷酸:
其中 X 和 Y 可以彼此相同或不同,并且是氢、任选取代的硅烷基、4-甲氧基三苯甲基、4,4'-二甲氧基三苯甲基或通式 (II) 所代表的基团:
其中 R1 和 R2 可以相同或不同,代表具有 1-7 个碳原子的烷基,如二异丙基,或者它们相互结合形成环状结构,R3 代表磷酸的保护基,如 2-氰乙基;B1 代表任选取代的嘧啶或嘌呤基。