Development of fluorescent probes specific for parallel-stranded G-quadruplexes by a library approach
作者:Liyun Zhang、Jun Cheng Er、Xin Li、Jun Jie Heng、Animesh Samanta、Young-Tae Chang、Chi-Lik Ken Lee
DOI:10.1039/c5cc01601k
日期:——
A novel fluorescent sensor with super selectivity to G-quadruplexes was discovered by the library approach.
通过文库方法发现了一种对G-四链体具有超强选择性的新型荧光传感器。
Cyanine dye compounds linked to metal chelator for bi-modal diagnostic imaging
申请人:DKFZ Deutsches Krebsforschungszentrum
公开号:EP1815870A1
公开(公告)日:2007-08-08
The present invention relates to compounds of formula I,
Ch-L-D (I),
wherein D is a cyanine dye, L is a covalent bond or a linker and Ch is a metal chelating moiety or a pharmaceutically acceptable salt thereof, which can be used for the preparation of a contrast agent for the at least bi-modal diagnostic imaging of a biological system as well as a contrast agent prepared from these compounds, their use in multi-modal diagnostic imaging and imaging methods.
A New Method for the Synthesis of Heptamethine Cyanine Dyes: Synthesis of New Near-Infrared Fluorescent Labels
作者:Narasimhachari Narayanan、Gabor Patonay
DOI:10.1021/jo00113a018
日期:1995.4
A new uncatalyzed synthesis of heptamethine cyanine dyes is described. The reaction involves heating a mixture of N-alkyl-substituted quaternary salts derived from 2,3,3-trimethylindole or 2,3,3-trimethylbenzindole and 2-chloro-1-formyl-3-(hydroxymethylene)cyclohex-1-ene to reflux in a mixture of 1-butanol and benzene (7:3) as solvent. No catalyst is used, and water is removed as an azeotrope. The resulting chloro compounds possess strong absorption and fluorescence properties in the near-infrared region and are converted to dyes bearing reactive functionalities such as hydroxy and isothiocyanate groups useful as fluorescent tags for nucleic acids and proteins. Several symmetric and nonsymmetric dyes have been synthesized in high yields.
[EN] COMPOUNDS USEFUL FOR THE AT LEAST BI-MODAL DIAGNOSTIC IMAGING<br/>[FR] composes pour imagerie diagnostique au moins bimodale
申请人:DKFZ KREBSFORSCHUNGSZENTRUM
公开号:WO2007088129A2
公开(公告)日:2007-08-09
[EN] The present invention relates to compounds of formula (I), Ch-L-D (I), wherein D is a cyanine dye, L is a covalent bond or a linker and Ch is a metal chelating moiety or a pharmaceutically acceptable salt thereof, which can be used for the preparation of a contrast agent for the at least bi-modal diagnostic imaging of a biological system as well as a contrast agent prepared from these compounds, their use in multi-modal diagnostic imaging and imaging methods. [FR] La présente invention a trait à des composés correspondant à la formule (I) Ch-L-D (I), dans laquelle D est un colorant de cyanine, L est une liaison covalente ou un lieur et Ch est un fragment chélateur métallifère ou l'un de ses sels pharmaceutiquement acceptable, pouvant être utilisés pour la préparation d'un agent de contraste pour l'imagerie diagnostique au moins bimodale d'un système biologique. L'invention a également trait à un agent de contraste obtenu à partir de ces composés, leur utilisation pour l'imagerie diagnostique multimodale et des procédés d'imagerie.
Ultrasensitive Near-Infrared Raman Reporters for SERS-Based In Vivo Cancer Detection
Of good report: Synthesis and screening of an 80‐member tricarbocyanine library identified CyNAMLA‐381 as a near‐IR surface‐enhanced Raman spectroscopy (SERS) reporter with good signal stability and higher sensitivity than the standard. Encapsulation of CyNAMLA‐381 on gold nanoparticles and conjugation to an antibody afforded SERS nanotags with excellent sensitivity, stability, and tumor specificity