| 摘要 |
<p>Nucleoside 2'-ether derivs. of formula (I) are new. In the formula R1 = H or a protecting gp.; R2 = H, a protecting gp. or a P-contg. nucleotide linking gp.; B = a purine or pyrimidine base or an analogue thereof; R3 = OH, F or R'3; R'3 = 1-8C perfluoro-n-alkyl. Also claimed are oligonucleotide analogues of formula 5'-U-(O-Y-O-V-)x-O-Y-O-W-3' (II) where x = 0-200; Y = a nucleotide linking gp.; U, V and W = natural or synthetic nucleoside units,≥1 of which is of formula (III).</p> |
