Doubly thiazole orange-labeled cytidine for functional expansion of a hybridization-sensitive probe
摘要:
A 2'-deoxycytidine derivative modified by two thiazole orange dyes has been designed for functional expansion of hybridization-sensitive fluorescence probes. This nucleotide was synthesized by a procedure that included protection of the cytosine amino group by di(n-butyl)formamidine formation, followed by incorporation into DNA. The fluorescence of the synthesized DNA was controlled by excitonic interaction, showing strong fluorescence upon hybridization with the target nucleic acid and effective quenching in a single-stranded state of the probe. (c) 2009 Elsevier Ltd. All rights reserved.
Doubly thiazole orange-labeled cytidine for functional expansion of a hybridization-sensitive probe
摘要:
A 2'-deoxycytidine derivative modified by two thiazole orange dyes has been designed for functional expansion of hybridization-sensitive fluorescence probes. This nucleotide was synthesized by a procedure that included protection of the cytosine amino group by di(n-butyl)formamidine formation, followed by incorporation into DNA. The fluorescence of the synthesized DNA was controlled by excitonic interaction, showing strong fluorescence upon hybridization with the target nucleic acid and effective quenching in a single-stranded state of the probe. (c) 2009 Elsevier Ltd. All rights reserved.
The invention relates to E-5-(2-halogenovinyl)-2'-deoxycytidines, e.g. E-5-(bromovinyl)-2'-deoxycytidine and E-5-(2-iodovinyl)-2'-deoxycytidine. These substances are endowed with specific antiviral activities towards herpes simplex virus and with an extremely low toxicity which makes them useful in antiviral medicines and for treatment of virus diseases in man and animal. They may be synthesized by introduction of an E-5-(2-halogenovinyl) sidechain into 2'-deoxycytidine, or by condensation of a trialkylsilyl derivative of E-5-(2-halogenovinyl)-cytosine with a hydroxyl-protected reactive derivative of 2'-deoxy-D-erythro-pentofuranose.
A 2'-deoxycytidine derivative modified by two thiazole orange dyes has been designed for functional expansion of hybridization-sensitive fluorescence probes. This nucleotide was synthesized by a procedure that included protection of the cytosine amino group by di(n-butyl)formamidine formation, followed by incorporation into DNA. The fluorescence of the synthesized DNA was controlled by excitonic interaction, showing strong fluorescence upon hybridization with the target nucleic acid and effective quenching in a single-stranded state of the probe. (c) 2009 Elsevier Ltd. All rights reserved.