申请人:Gilead Sciences, Inc.
公开号:US05486603A1
公开(公告)日:1996-01-23
The present invention relates to an oligonucleotide or analog thereof conjugated to a molecule comprising a structure, which structure (a) is of substantially fixed conformation; (b) contains, is directly attached to, or is attached to a carbon atom that is directly attached to, an first amine; and (c) contains, is directly attached to, or is attached to an atom that is directly attached to a phosphate, a second amine, or a cationic sulfur. In a preferred embodiment, the structure consists of at least a nonaromatic cyclic portion or substituted derivative thereof. In a specific embodiment, the structure is a nonaromatic cyclic compound. In another embodiment, the molecule is a steroid. In yet another particular aspect, the structure is an aromatic compound. In another embodiment, the structure can bind to a nucleic acid sequence in a nonintercalative manner. The invention also relates to a conjugate comprising a steroid or substituted derivative thereof containing, or attached directly or through a carbon atom to, an amine, which steroid or substituted derivative is conjugated to at least one hydrogen-phosphonate and a cation; such a conjugate may be used as an intermediate in synthesis. The oligonucleotide conjugates of the invention can have a number of uses. For example, the conjugates may be used for diagnostic purposes by detecting a nucleic acid sequence.
本发明涉及与包含结构的分子结合的寡核苷酸或其类似物,该结构(a)具有基本固定的构象;(b)包含,直接连接到或连接到直接连接到第一胺的碳原子;以及(c)包含,直接连接到或连接到直接连接到磷酸盐、第二胺或阳离子硫的原子。在一个首选实施例中,该结构至少由非芳香环状部分或其取代物组成。在一个具体实施例中,该结构是非芳香环状化合物。在另一个实施例中,该分子是类固醇。在另一个特定方面,该结构是芳香化合物。在另一个实施例中,该结构可以以非插入方式结合到核酸序列。本发明还涉及包含类固醇或其取代物的共轭物,该类固醇或其取代物含有或直接或通过碳原子连接到胺,并且该类固醇或其取代物与至少一个氢磷酸酯和一个阳离子结合;这样的共轭物可以用作合成中的中间体。本发明的寡核苷酸共轭物可以具有多种用途。例如,这些共轭物可以通过检测核酸序列用于诊断目的。