[Subject]
The object of the present invention is to provide novel oligonucleotide analogues, which exhibit antisense or antigene activity having excellent stability, or exhibit excellent activity as a detection agent (probe) for a specific gene or as a primer for starting amplification, and to novel nucleoside analogues which are intermediates for their production.
[Solution]
A compound of the formula (1):
[wherein R1 and R2 are the same or different and represent a hydrogen atom, a hydroxyl protecting group, a phosphoric acid group, or -P(R3)R4 [wherein R3 and R4 are the same or different and represent a hydroxyl group, an amino group, an alkoxy group having from 1 to 4 carbon atoms, a cyanoalkoxy group having from 1 to 5 carbon atoms or an amino group substituted by an alkyl group having from 1 to 4 carbon atoms];
A represents an alkylene group having from 1 to 4 carbon atoms; and B represents a purin-9-yl group, a 2-oxo-pyrimidin-1-yl group or a substituted purin-9-yl group or a substituted 2-oxo-pyrimidin-1-yl group having a substituent selected from the following α group];
or the salt thereof;
(α group)
a hydroxyl group which may be protected, an alkoxy group having from 1 to 4 carbon atoms, a mercapto group which may be protected, an alkylthio group having from 1 to 4 carbon atoms, an alkoxy group having from 1 to 4 carbon atoms, an amino group which may be protected, a mono- or di-alkylamino group which may be substituted by an alkyl group having from 1 to 4 carbon atoms, an alkyl group having from 1 to 4 carbon atoms and a halogen atom. A compound of the formula (I), and the pharmacologically acceptable salts or derivatives thereof.
主题
本发明的目的是提供新型寡核苷酸类似物,它们具有优异的稳定性,表现出反义或反
基因活性,或作为特定
基因的检测剂(探针)或作为起始扩增的引物表现出优异的活性,以及作为其生产中间体的新型核苷类似物。
[解决方案]
式(1)的化合物:
[其中 R1 和 R2 相同或不同,代表氢原子、羟基保护基团、
磷酸基团或 -P(R3)R4 [其中 R3 和 R4 相同或不同,代表羟基、
氨基、具有 1 至 4 个碳原子的烷氧基、具有 1 至 5 个碳原子的
氰基烷氧基或被具有 1 至 4 个碳原子的烷基取代的
氨基];
A 代表具有 1 至 4 个碳原子的亚烷基;以及 B 代表
嘌呤-9-基、2-氧代
嘧啶-1-基或取代的
嘌呤-9-基或取代的 2-氧代
嘧啶-1-基,其取代基选自以下 α 基团];
或其盐;
(α 基团)
可被保护的羟基、具有 1 至 4 个碳原子的烷氧基、可被保护的巯基、具有 1 至 4 个碳原子的烷
硫基、具有 1 至 4 个碳原子的烷氧基、可被保护的
氨基、可被具有 1 至 4 个碳原子的烷基、具有 1 至 4 个碳原子的烷基和卤素原子取代的单-或二-烷基
氨基。式(I)化合物及其药理学上可接受的盐或衍
生物。