First Evaluation of Acyloxymethyl or Acylthiomethyl Groups as Biolabile 2‘-<i>O</i>-Protections of RNA
作者:Nora Parey、Carine Baraguey、Jean-Jacques Vasseur、Françoise Debart
DOI:10.1021/ol0616182
日期:2006.8.1
Short oligo-U sequences containing 2'-O-acyloxymethyl or acylthiomethyl groups as biolabile 2'-O-protections of RNA have been synthesized. These modified homouridylates are deprotected upon cellular esterase activation to release the parent RNA. They exhibit exceptional resistance to nuclease degradation, and the evaluation of their pairing properties shows that the 2'-acyloxymethyl groups do not prevent the duplex dsRNA formation. These biolabile 2'-modifications overcome the first hurdle to turn oligoribonucleotides into canditates for RNA interference drugs.