摘要:
The invention relates to a novel labeling reactant of formula (I) suitable for labeling an oligonucleotide wherein:
R is a temporary protecting group. A is either a phosphorylating moiety or a solid support tethered to a bridge point Z via a linker arm E. E' is a linker arm between G and Z. G is a bivalent aromatic structure, tethered to two iminodiacetic acid ester groups N(COOR'") 2 or G is a structure selected from a group consisting of
or G is a protected functional group. The invention further concerns a method for direct attachment of a conjugate group to an oligonucleotide structure enabling the attachment of a desired number of these groups during chain assembly. The method comprises a Mitsonobu alkylation.
摘要:
The invention relates to a novel labeling reactant, suitable for labeling of a biospecific binding reactant using solid-phase synthesis. The invention further concerns new labeling methods. The novel labeling reactant has the formula (I) wherein
A is a bivalent aromatic structure capable of absorbing light or energy and transferring the excitation energy to a lanthanide ion after the product made by the said solid-phase synthesis has been released from the used solid support, deprotected and converted to a lanthanide chelate; R is - Z(G' - NH - X) G" - E, where X is a transient protecting group; E is a carboxylic acid, its salt, active ester or halide; Z is the bridge point; G is a bridge between A and Z, G' is a bridge between NH and Z and G" is a bridge between E and Z. R' is -COOR''' where R''' is an alkyl of 1 to 4 carbon atoms, phenyl or benzyl.
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(CH 2 COOR") 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. The invention also relates to a labeling reactant analogous to the one defined above useful for labeling an oligo- or polynucletide using polymerases. The invention further relates to an oligonucleotide or polynucleotide conjugate that can be synthesized using said reactants.
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(CH 2 COOR") 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. The invention also relates to a labeling reactant analogous to the one defined above useful for labeling an oligo- or polynucletide using polymerases. The invention further relates to an oligonucleotide or polynucleotide conjugate that can be synthesized using said reactants.
摘要:
The invention relates to a novel labeling reactant of formula (I) suitable for labeling an oligonucleotide wherein: R is a temporary protecting group. A is either a phosphorylating moiety or a solid support tethered to a bridge point Z via a linker arm E. E' is a linker arm between G and Z. G is a bivalent aromatic structure, tethered to two iminodiacetic acid ester groups N(COOR'")2 or G is a structure selected from a group consisting of or G is a protected functional group. The invention further concerns a method for direct attachment of a conjugate group to an oligonucleotide structure enabling the attachment of a desired number of these groups during chain assembly. The method comprises a Mitsonobu alkylation.