名称:
Synthesis and Evaluation of Oligodeoxynucleotides Containing 3′-O-Ethyl-4′-C-(hydroxymethyl)thymidine: Introduction of a Novel Class of Phosphodiester Internucleoside Linkages
摘要:
3'-O-Ethyl-4'-C-(hydroxymethyl)thymidine (5) was synthesized and converted into the phosphoramidite building block 8. Novel oligodeoxynucleotide analogues containing 4'-C-hydroxymethyl phosphodiester internucleoside linkages were synthesized on an automated DNA-synthesizer. The hybridization properties and enzymatic stability were studied on oligomers with one to four modifications. The 3'-end modified oligodeoxynucleotides were resistent towards 3'-exonuclease degradation and showed only moderate lowered affinity towards complementary DNA compared with oligodeoxynucleotides bearing modifications in the middle.
DOI:
10.1080/15257779408010674