Abstract: The present invention provides for oligonucleotide arrays wherein the oligonucleotides comprise six-membered sugar-ring nucleosides, especially tetrahydropyran nucleosides, more specifically altritol nucleosides. The present invention also provides for the use of said oligonucleotide arrays for detecting target molecules in samples (diagnostic or experimental use). The present invention also provides for a method of detecting target molecules in samples by using said oligonucleotide arrays comprising six-membered sugar-ring nucleosides.

Abstract: The present invention relates to the use of modified nucleotides and single or double stranded oligonucleotides having at least one of said modified nucleotides for performing RNA interference. The modified nucleotides are selected from 6-membered ring containing nucleotides such as hexitol, altritol, O-substituted or O-alkylated altritol, cyclohexenyl, ribo-cyclohexenyl and O-substituted or O-alkylated ribo-cyclohexenyl nucleotides. The present invention also relates to novel modified nucleosides or nucleotides and to the use of the novel modified nucleosides and nucleotides in single or double stranded oligonucleotides for RNA interference, antisense therapy or other applications.

Abstract: The presently disclosed subject matter relates to the delivery of oligonucleotides to cells through the delivery of a composition or reagent comprising a hybridization complex comprising a first antisense oligonucleotide which is modified to have a higher stability against degradation, and a second sense oligonucleotide which is prone to degradation. The presently disclosed subject matter furthermore relates to dendrimeric bioconjugates and compositions or reagents comprising them, wherein the bioconjugate comprises a conjugate moiety coupled to a dendrimeric structure and to their use to deliver oligomeric compounds including oligonucleotides or duplexes, as described above, to cells for modulation of gene expression (i.e. antisense or antigene therapy/research, RNA interference).

Abstract: An N-aminoimidazole or N-aminoimidazolethione derivative, a pharmaceutically acceptable salt, a tautomer, an isomer, an ester or glycosylation product thereof, said derivative being represented by general formula (I): wherein m=zero or 1, n=zero or 1, R1 is selected from hydrogen, methyl or ethyl, R2 is selected from hydrogen, SH or —SR0 wherein R0 is methyl, benzyl or glucose residue; Q is selected from 1-naphtyl, 2-naphtyl, biphenyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-pyrimidyl, 4-pyrimidyl, 5-pyrimidyl, thienyl, or a substituted or unsubstituted phenyl ring, wherein the substitution is understood as being one or two substituents selected from H, F, Cl, Br, I, methyl, ethyl or isopropyl; L is selected from 1-naphtyl, 2-naphtyl, biphenyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-pyrimidyl, 4-pyrimidyl, 5-pyrimidyl, thienyl, or a substituted or unsubstituted phenyl ring wherein the substitution is understood as being one or two substituents selected from H, F, Cl, Br, I, methyl, ethyl or isopropyl.

Abstract: An N-aminoimidazole or N-aminoimidazolethione derivative, a pharmaceutically acceptable salt, a tautomer, an isomer, an ester or glycosylation product thereof, said derivative being represented by general formula (I): wherein m=zero or 1, n=zero or 1, R1 is selected from hydrogen, methyl or ethyl, R2 is selected from hydrogen, SH or —SR0 wherein R0 is methyl, benzyl or glucose residue; Q is selected from 1-naphtyl, 2-naphtyl, biphenyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-pyrimidyl, 4-pyrimidyl, 5-pyrimidyl, thienyl, or a substituted or unsubstituted phenyl ring, wherein the substitution is understood as being one or two substituents selected from H, F, Cl, Br, I, methyl, ethyl or isopropyl; L is selected from 1-naphtyl, 2-naphtyl, biphenyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-pyrimidyl, 4-pyrimidyl, 5-pyrimidyl, thienyl, or a substituted or unsubstituted phenyl ring wherein the substitution is understood as being one or two substituents selected from H, F, Cl, Br, I, methyl, ethyl or isoprop

Abstract: The present invention is directed to nucleoside analogues with as substitute for the sugar part a 1,5-anhydrohexitol moiety, doexygenated and substituted with a nucleobase at the 2-position, of which the hexitorl ring is further substituted with at least one alkoxy substituent at the 3-position or at the 1-position, and to oligonucleotides wherein at least some of the nucleotides are part of the afore mentioned hexitol nucleoside analogues and exhibit sequence-specific hydridization to complementary sequences of nucleic acids, and maintaining or improving the hybridisation strength. The invention further relates to nucleoside analogues with a 1,5-anhydrohexitol moiety as the sugar part, deoxygenated and substituted with a nucleobase at the 2-position, of which the hexitol ring is substituted with a methoxy substituent at the 1-position, having at the same time either a hydroxy or an alkoxy group at the 3-position, or having a 3-deoxygenated position.