| 摘要 |
[Problem] To provide a novel oligonucleotide derivative that is easy to synthesize and can be introduced into cells without using a lipofection reagent. [Solution] The oligonucleotide derivative of the present invention is shown by, e.g., (1). This derivative is considered to bind an aminoglycan moiety to a ligand on the surface of a cell and be introduced into the cell, and can be expected to have selective drug delivery functions. In the formula, R1 and R2 each independently represent a hydrogen or phosphate group; a, b, and c independently represent integers of 0 or higher, at least one of a, b, and c being 1 or higher; A and B independently represent optionally modified oligonucleotides having a combined chain length of A and B of 3 or higher. However, A and B do not include hydroxyl groups at the 3' end and 5' end of the oligonucleotide. Furthermore, S in the formula indicates a sugar substituent, a peptide chain, or a tocopherol binding group. Additionally, an alkyl group may be bonded, in lieu of hydrogen, to the benzene ring in the formula. |
