Oligonucleotide labeling reactants based on acyclonucleosides and conjugates derived thereof

摘要

The invention relates to a labeling reactant of formula (I) useful for labeling an oligonucleotide wherein: R is a temporary protecting group. A is either a phosphorylating moiety or a solid support tethered to Z via a linker arm E''. Z is a bridge point and is formed from E is a linker arm between R and Z. E' is a linker arm between Z and Z'. E'' is a linker arm between Z and A. E''' is a linker arm between Z' and G. Z' is a purine or pyrimidine base. G is a protected bivalent aromatic structure, tethered to two iminodiacetic acid ester groups N(CH₂COOR'')₂, or G is a structure selected from the group consisting of or G is a protected functional group, or G is a protected or unprotected organic dye, hapten or a spin label.