The present invention provides novel quencher composition comprising anthraquinone quencher moieties. The anthraquinone quencher moieties are useful as quencher labels when attached to biomolecules such as natural or modified polynucleotides, oligonucleotides, nucleosides, nucleotides, carbohydrates and peptides. For example, polynucleotides can be labeled at the 3′ terminus with fluorescence quencher solid support compositions, and polynucleotides can be labeled at internally or at the 5′ terminus. The detectable probes may have a format like molecular beacons, scorpion probes, sunrise probes, conformationally assisted probes and TaqMan probes.
Use of compound of Formula (I): at least one of R
1
, R
2
, R
5
and R
6
is a group —AB and the others are independently selected from hydrogen, hydroxy, alkoxy or acyloxy, a group —AB a group -amino-(R
7
)
n
X—Y wherein R
7
is a divalent organic radical and n is 0 or 1; R
3
and R
4
are independently oxo, hydroxy or hydrogen; the or each A is independently a spacer group of formula -amino-(R
7
)
n
—X— which is bonded to the anthracene ring via the amino group nitrogen and to B via —X—, X is independently selected from O, NH and C(O); B is an amino acid residue or a peptide group or isostere thereof and Y is hydrogen or a capping group, or a physiologically acceptable derivative of such compound for the manufacture of a medicament for the treatment of cancers or microbial infections having cells exhibiting topoisomerase I activity characterised in that the group -amino-(R
7
)
n
—X— incorporates an optionally substituted heterocyclic ring directly attached to the anthroquinone ring through an amino nitrogen in the heterocycclic ring, or an optionally substituted heterocyclic or carbocyclic ring that is spaced from the anthraquinone ring by no more than an amino nitrogen and up to four carbon atoms.
The synthesis of hydroxyalkylamino derivatives from 1,8‐dichloroanthraquinone and succinic esters from hydroxyanthraquinones is reported. The esters 10 and 12 show significant antitumor activity but without improvement in comparison to the activity of a previously described analogue.
[EN] ANTHRACENE DERIVATIVES AS ANTI-CANCER AGENTS<br/>[FR] DERIVES D'ANTHRACENE UTILISES COMME AGENTS ANTICANCEREUX (III)
申请人:BTG INT LTD
公开号:WO2001044190A1
公开(公告)日:2001-06-21
Use of compound of Formula (I): at least one of R?1, R2, R5 and R6¿ is a group -AB and the others are independently selected from hydrogen, hydroxy, alkoxy or acyloxy, a group -AB a group -amino-(R7)nX-Y wherein R7 is a divalent organic radical and n is 0 or 1; R?3 and R4¿ are independently oxo, hydroxy or hydrogen; the or each A is independently a spacer group of formula -amino-(R7)n-X- which is bonded to the anthracene ring via the amino group nitrogen and to B via -X-, X is independently selected from O, NH and C(O); B is an amino acid residue or a peptide group or isostere thereof and Y is hydrogen or a capping group, or a physiologically acceptable derivative of such compound for the manufacture of a medicament for the treatment of cancers or microbial infections having cells exhibiting topoisomerase I activity characterised in that the group -amino-(R7)n-X- incorporates an optionally substituted heterocyclic ring directly attached to the anthroquinone ring through an amino nitrogen in the heterocycclic ring, or an optionally substituted heterocyclic or carbocyclic ring that is spaced from the anthraquinone ring by no more than an amino nitrogen and up to four carbon atoms.
Novel methods for quantification of microRNAs and small interfering RNAs
申请人:Jacobsen Nana
公开号:US20050272075A1
公开(公告)日:2005-12-08
The invention relates to ribonucleic acids, probes and methods for detection, quantification as well as monitoring the expression of mature microRNAs and small interfering RNAs (siRNAs). The invention furthermore relates to methods for monitoring the expression of other non-coding RNAs, mRNA splice variants, as well as detecting and quantifying RNA editing, allelic variants of single transcripts, mutations, deletions, or duplications of particular exons in transcripts, e.g., alterations associated with human disease such as cancer. The invention furthermore relates to methods for detection, quantification as well as monitoring the expression of deoxy nucleic acids.