Synthesis of new acyclic aminophosphites and their chelate complexes with rhodium(i) and palladium(ii)
作者:K. N. Gavrilov、A. V. Korostylev、O. G. Bondarev、P. V. Petrovskii、K. A. Lyssenko、A. I. Polosukhin、V. A. Davankov
DOI:10.1007/bf02494789
日期:2000.3
New acyclic aminophosphites (RO)2POCH2CH2NMe2 (PN) (R=Et, Pri, or adamantyl) characterized by various steric requirements of the phosphorus center were synthesized. The reactions of the aminophosphites with Pd(COD)Cl2 (COD is 1,5-cyclooctadiene) and [Rh(CO)2Cl]2 afforded the stable chelate mononuclear complexes PdCl2(PN) and RhClCO(PN), respectively. The structures of the resulting compounds were established
The present invention provides nucleosides and oligonucleotides comprising a 5′ phosphate mimics of formula (IVc) or (Vc),
One aspect of the present invention relates to modified nucleosides and oligonucleotides comprising such dinucleotide of formula (Ia). Another aspect of the invention relates to a method of inhibiting the expression of a gene in call, the method comprising (a) contacting an oligonucleotide of the invention with the cell; and (b) maintaining the cell from step (a) for a time sufficient to obtain degradation of the mRNA of the target gene.