摘要:
beta-D-Xylopyranosyl-(4'-->2')-oligonucleotides containing adenine and thymine as nucleobases were synthesized as a part of a systematic study of the pairing properties of pentopyranosyl oligonucleotides. Contrary to earlier expectations based on qualitative conformational criteria, beta-D-xylopyranosyl-(4'-->2')oligonucleotides show Watson-Crick pairing comparable in strength to that shown by pyranosyl-RNA.