| 摘要 |
<p>A compound represented by the general formula (1) and a salt thereof: (1) wherein A represents a direct bond, C1-4 alkylene, etc.; B represents an optionally substituted aromatic heterocyclic group, etc.; and R1, R2, R3, and R4 each represents hydrogen, an amino-protecting group, a hydroxy-protecting group, a phosphate group, or -P(R7)R8 (wherein R7 and R8 each represents hydroxy, protected hydroxy, mercapto, protected mercapto, etc.). The compound is useful as a nucleoside analogue for producing an oligonucleotide analogue useful in, e.g., the antisense method and for producing an intermediate therefor.</p> |
