Chimeric (aeg-pyrrolidine)PNAs: synthesis and stereo-discriminative duplex binding with DNA/RNA
作者:Pallavi S. Lonkar、Krishna N. Ganesh、Vaijayanti A. Kumar
DOI:10.1039/b407292h
日期:——
The design and facile conversion of naturally occurring 4-hydroxyproline to all four diastereomers of thymine pyrrolidine PNA monomer, (2R,4S)-adenine, -guanine and -cytosine monomers and their incorporation into duplex forming PNA oligomers is reported. The interesting results of the hybridization studies with complementary DNA/RNA sequences in either parallel or antiparallel orientation reveal the stereochemistry-dependent DNA vs. RNA discriminations and parallel/antiparallel orientation selectivity.
报道了天然存在的4-羟基脯氨酸的设计及其方便转化为胸腺嘧啶吡咯烷PNA单体的四种立体异构体,以及(2R,4S)-腺嘌呤、-鸟嘌呤和-胞嘧啶单体的合成,并将其引入到形成双链的PNA寡聚体中。对互补DNA/RNA序列在平行或反平行方向下的杂交研究得到的有趣结果揭示了立体化学依赖的DNA与RNA的区分以及平行/反平行方向的选择性。