申请人:ISIS Pharmaceuticals, Inc.
公开号:US05808023A1
公开(公告)日:1998-09-15
Novel compounds that mimic and/or modulate the activity of wild-type nucleic acids are provided. The novel compounds have modified internucleoside linkages which preferably replace naturally-occurring phosphodiester-5'-methylene linkages with four atom linking groups. Preferred linkages have structures such as, for example, CH.sub.2 --R.sub.A --NR.sub.1 --CH.sub.2, CH.sub.2 --NR.sub.1 --R.sub.A --CH.sub.2, R.sub.A --NR.sub.1 --CH.sub.2 --CH.sub.2, CH.sub.2 --CH.sub.2 --NR.sub.1 --R.sub.A, CH.sub.2 --CH.sub.2 --R.sub.A --NR.sub.1, or NR.sub.1 --R.sub.A --CH.sub.2 --CH.sub.2 where R.sub.A is O or NR.sub.2. These linkages are prepared from appropriately functionalized nucleosides and oligonucleotides.
提供模拟和/或调节野生型核酸活性的新化合物。这些新化合物具有修改的核苷酸间连接,最好用四原子连接基固定取代自然发生的磷酸二酯-5'-亚甲基连接。首选连接具有结构,例如,CH.sub.2 --R.sub.A --NR.sub.1 --CH.sub.2,CH.sub.2 --NR.sub.1 --R.sub.A --CH.sub.2,R.sub.A --NR.sub.1 --CH.sub.2 --CH.sub.2,CH.sub.2 --CH.sub.2 --NR.sub.1 --R.sub.A,CH.sub.2 --CH.sub.2 --R.sub.A --NR.sub.1,或NR.sub.1 --R.sub.A --CH.sub.2 --CH.sub.2,其中R.sub.A为O或NR.sub.2。这些连接是从适当功能化的核苷酸和寡核苷酸制备的。