申请人:Liu Chuan Fa
公开号:US08859490B2
公开(公告)日:2014-10-14
Disclosed is a peptide nucleic acid monomer as well as a corresponding peptide nucleic acid molecule. The monomer comprises a terminal amino group and a terminal group A. The terminal amino group and the terminal group A are connected by an aliphatic moiety. The main chain of this aliphatic moiety is free of groups that are charged under physiological conditions. The terminal group A is one of —COOH, —COOR3, —COX, —COSR3, —CN, —CONH2, —CONHR3, —CONR3, R4, with R3 and R4 being H or an aliphatic, alicyclic, aromatic, arylaliphatic or arylalicyclic group, and X being a halogen atom. The terminal amino group is substituted by an aliphatic group with a main chain of at least two carbon atoms and optionally 0 to about 2 heteroatoms selected from the group N, O, S, Se and Si. The main chain has a polar head group Z.
本发明公开了一种肽核酸单体以及相应的肽核酸分子。该单体包括一个末端氨基和一个末端A基团。末端氨基和末端A基团通过一种脂肪基连接。该脂肪基的主链在生理条件下没有带电的基团。末端A基团是以下化学结构之一:—COOH,—COOR3,—COX,—COSR3,—CN,—CONH2,—CONHR3,—CONR3,R4,其中R3和R4为H或脂肪基、脂环基、芳香基、芳基脂基或芳基脂环基,X为卤素原子。末端氨基被一个主链至少含有两个碳原子和可选的0至约2个来自N、O、S、Se和Si的杂原子的脂肪基取代。该主链具有一个极性头基团Z。