605-65-2Relevant articles and documents
Preparation method of 6-deuterated dansyl chloride
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Paragraph 0076-0077; 0079, (2020/12/14)
The invention belongs to the technical field of isotope derivatization reagent preparation, and particularly relates to a preparation method of 6-deuterated dansyl chloride. According to the preparation method, 6-deuterated dansyl chloride can be prepared from reaction raw materials including 5-amino-1-naphthalene sulfonic acid, sodium hydride, deuterated methyl iodide, phosphorus oxychloride andphosphorus pentachloride. The preparation method has the advantages of easily available raw materials, low toxicity, few intermediate products and high yield.
Degradable conjugates from oxanorbornadiene reagents
Kislukhin, Alexander A.,Higginson, Cody J.,Hong, Vu P.,Finn
supporting information; experimental part, p. 6491 - 6497 (2012/05/07)
Oxanorbornadienedicarboxylate (OND) reagents were explored for purposes of binding and releasing drugs from serum albumins as representative macromolecular carriers. Being highly reactive Michael acceptors, ONDs form adducts with thiols and amines, which then undergo retro-Diels-Alder fragmentation. A study of more than 30 model adducts revealed a number of modifications that can be used to influence adduct stability. For the most reactive OND linkers, the labeling of the single available bovine serum albumin (BSA) cysteine residue was complete within minutes at a mid-micromolar concentration of reactants. While a selectivity of greater than 1000-fold for thiol over amine was observed with model amino acids, the labeling of protein amines with ONDs is fast enough to be practical, as demonstrated by the reaction with thiol-depleted BSA. The OND-amine adducts were found to be up to 15 times more stable than OND-thiol adducts, and to be sensitive to acid by virtue of a stereochemically dependent acceleration of cycloreversion. The release rate of fluorescent cargo from serum albumins was tuned by selecting the coupling partners: the available half-lives ranged from 40 min to 7 days at 37 °C. Such versatility of release profiles from protein carriers, controlled by the nature of the OND linkage, is a useful addition to the drug delivery toolbox.
A convenient, one-pot procedure for the preparation of acyl and sulfonyl fluorides using Cl3CCN, Ph3P, and TBAF(t -BuOH) 4
Kim, Joong-Gon,Jang, Doo Ok
experimental part, p. 3049 - 3052 (2011/02/25)
Various carboxylic acids were converted into acyl fluorides in excellent yields by treatment with trichloroacetonitrile, triphenylphosphine, and TBAF(t-BuOH)4 at room temperature. The reaction was applicable to the preparation of acid-sensitive amino acid fluorides without deprotection or rearrangement
Activatable probes and methods for in vivo gene detection
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, (2008/06/13)
Probes for detecting a target polynucleotide are provided. One aspect provides a molecular beacon probe set wherein the donor molecular beacon comprises a quantum dot and an acceptor molecular beacon comprises at least one reporter. The probes optionally comprise a protein transduction domain, targeting signal, or a combination thereof. Methods for detecting target polynucleotides using the disclosed probes are also provided.
Dual resonance energy transfer nucleic acid probes
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, (2008/06/13)
Dual nucleic acid probes with resonance energy transfer moieties are provided. In particular, fluorescent or luminescent resonance energy transfer moieties are provided on hairpin stem-loop molecular beacon probes that hybridize sufficiently near each other on a subject nucleic acid, e.g. mRNA, to generate an observable interaction. The invention also provides lanthanide chelate luminescent resonance energy transfer moieties on linear and stem-loop probes that hybridize sufficiently near each other on a subject nucleic acid to generate an observable interaction. The invention thereby provides detectable signals for rapid, specific and sensitive hybridization determination in vivo. The probes are used in methods of detection of nucleic acid target hybridization for the identification and quantification of tissue and cell-specific gene expression levels, including response to external stimuli, such as drug candidates, and genetic variations associated with disease, such as cancer.
Bispiperidines as antithrombotic agents
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, (2008/06/13)
Novel compounds which are inhibitors of the binding of fibrinogen to the Gp IIb/IIIa platelet receptors, and which can be used therepeutically as antithrombotic agents
The 2-Dansylethoxycarbonyl (=2-{[5-dimethylamino)naphthalen-1-yl]sulfonyl}ethoxycarbonyl; Dnseoc) group for protection of the 5'-hydroxy function in oligodeoxyribonucleotide synthesis
Bergmann,Pfleiderer
, p. 203 - 215 (2007/10/02)
Use of the 2-dansylethoxycarbonyl (=2-{[5-(dimethylamino)naphthalen-1-yl]sulfonyl])ethoxycarbonyl; Dnseoc) group as an intermediate 5'-OH protecting group in oligodeoxyribonucleotide synthesis using the automated phosphoramidite approach is described in a model study to an alternative strategy in RNA synthesis.
ARYL-VINYLSULFONE--REAGENTIEN ZUM SCHUTZ UND NACHWEIS VON THIOLFUNKTIONEN
Horner, L.,Lindel, H.
, p. 1 - 8 (2007/10/02)
Aryl vinyl sulfones selectively react with thiol groups to acid-stable compounds which easily are cleaved by mild bases to thiol compounds.Ester and amide groups are not attacked under these conditions.Therefore, these compounds are good protecting groups or labels in peptide chemistry.The following aryl vinyl sulfones were investigated: phenyl vinyl sulfone 1, p-carbethoxyphenyl vinyl sulfone 15 and the fluorescent 5-dimethylaminonaphthyl 1-vinyl sulfone 5 and 5-methoxynaphthyl-1 vinyl sulfone 10.The last two compounds are very useful reagents for the quantitative determination of SH-groups in polypeptides such as enzymes.
