1.
Org Lett
; 10(2): 209-12, 2008 Jan 17.
Article
in English
| MEDLINE
| ID: mdl-18088134
ABSTRACT
The first synthesis of 4'-selenonucleosides was achieved using a Pummerer-type condensation as a key step. All stereoelectronic effects shown in 4'-oxonucleosides were overwhelmed by the size of selenium and steric interactions, driving the conformation to the C2'-endo/ C3'-exo twist (Southern) conformation.