The oligonucleotide derivative of the present invention is represented by Formula (1). This derivative is considered to be introduced into cells by binding of its amino sugar chain moiety to a ligand on cell surfaces, and have selective drug delivery function. The oligonucleotide derivative can be easily synthesized and introduced into cells without using a lipofection reagent.
wherein—A and B are independently modified or unmodified oligonucleotides whose total chain length is 3 or more, and A and B do not contain hydroxyl groups at 3′ and 5′ ends of the oligonucleotide; S represents a sugar substituent, a peptide chain, or a tocopherol-binding group; and an alkyl group may be bound instead of hydrogen bound to a benzene ring.
本发明的寡核苷酸衍
生物由式(1)表示。该衍
生物被认为通过其
氨基糖链部分与细胞表面的
配体结合而被引入细胞,并具有选择性药物传递功能。该寡核苷酸衍
生物可以在不使用脂质体载体的情况下轻松合成并引入细胞。其中,A和B分别是经修饰或未经修饰的寡核苷酸,其总链长为3或更长,且A和B不含有寡核苷酸的3′和5′末端的羟基;S代表糖取代基、肽链或
生育酚结合基;和烷基基团可以与苯环上的氢结合而不是氢结合。