Compounds of the following general formula (1) and salts thereof:
where A represents an alkylene group having 1 to 2 carbon atoms, etc.; B represents an aromatic heterocyclic group which may have a substituent, etc.; R
1
and R
2
each represent a hydrogen atom, a protective group for a hydroxyl group for synthesis of nucleic acid, a phosphate group, or —P(R
4
)R
5
[where R
4
and R
5
are the same or different, and each represent a hydroxyl group, a hydroxyl group protected with a protective group for synthesis of nucleic acid, a mercapto group, a mercapto group protected with a protective group for synthesis of nucleic acid, etc.]; and R
3
represents a hydrogen atom, a halogen atom, a hydroxyl group, a hydroxyl group protected with a protective group for synthesis of nucleic acid, etc.
These compounds are useful for producing oligonucleotide analogues useful for the antisense method, antigene method, etc., and for producing their intermediates.
以下通式(1)的化合物及其盐:
其中,A代表1至2个
碳原子的烷基;B代表一种芳香杂环基团,可以具有取代基;R1和R2分别代表
氢原子、用于
核酸合成的羟基保护基、
磷酸基或—P(R4)R5[其中,R4和R5相同或不同,每个代表羟基、用于
核酸合成的羟基保护基、巯基、用于
核酸合成的巯基保护基等];R3代表
氢原子、卤素原子、羟基、用于
核酸合成的羟基保护基等。
这些化合物可用于制备用于反义方法、抗
基因方法等的寡
核苷酸类似物,以及它们的
中间体。