A fluorogenic ‘click’ reaction of azidoanthracene derivatives
摘要:
Fluorogenic reactions have broad applications in biolabeling, combinatorial synthesis of fluorescent dyes, and materials development. It was recently reported that the highly selective and efficient Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction can be employed in designing new types of fluorogenic reactions. In this study, we report a fluorogenic reaction using anthracene azides as starting materials. The fluorescence of the anthryl core can be greatly inhibited upon introducing electron-donating azido groups in the proximity. Such weakly fluorescent anthracene azides demonstrate high reactivity with a variety of alkynes under the CuAAC conditions producing a strongly fluorescent triazole product with high quantum yields. This reaction can be used in the synthesis and screening of fluorescent dyes combinatorially. Compared with most existing methods, the fluorogenic CuAAC reaction is a much milder and simpler technique to prepare large libraries of fluorescent dyes without further purification. In order to demonstrate the efficiency of using anthracene azides for biolabeling applications, both small molecules and biomolecules including the multialkyne-derivatized cowpea mosaic virus and tobacco mosaic virus had been studied. (C) 2008 Elsevier Ltd. All rights reserved.
A fluorogenic ‘click’ reaction of azidoanthracene derivatives
摘要:
Fluorogenic reactions have broad applications in biolabeling, combinatorial synthesis of fluorescent dyes, and materials development. It was recently reported that the highly selective and efficient Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction can be employed in designing new types of fluorogenic reactions. In this study, we report a fluorogenic reaction using anthracene azides as starting materials. The fluorescence of the anthryl core can be greatly inhibited upon introducing electron-donating azido groups in the proximity. Such weakly fluorescent anthracene azides demonstrate high reactivity with a variety of alkynes under the CuAAC conditions producing a strongly fluorescent triazole product with high quantum yields. This reaction can be used in the synthesis and screening of fluorescent dyes combinatorially. Compared with most existing methods, the fluorogenic CuAAC reaction is a much milder and simpler technique to prepare large libraries of fluorescent dyes without further purification. In order to demonstrate the efficiency of using anthracene azides for biolabeling applications, both small molecules and biomolecules including the multialkyne-derivatized cowpea mosaic virus and tobacco mosaic virus had been studied. (C) 2008 Elsevier Ltd. All rights reserved.
A novel rearrangement of fluorescent human thymidylate synthase inhibitor analogues in ESI tandem mass spectrometry
作者:Yi Chen、Céline Le Droumaguet、Kai Li、William E. Cotham、Norman Lee、Mike Walla、Qian Wang
DOI:10.1016/j.jasms.2009.11.004
日期:2010.3.1
Cu(I) catalyzed alkyne-azide cycloaddition reaction was employed to synthesize a series of anthracene-based human thymidylate synthase (hTS) inhibitor analogues. The triazolo-anthracene derivatives were characterized by ESI-MS/MS and a novel rearrangementreaction in ESI-MS/MS was observed. The mechanism is proposed whereby the protonated triazolo-anthracene derivative forms a carbocation, and then
The present invention relates to fluorescent and/or targeting lipophilic compounds having the general formula (R1O)(R2O)P(O)—R3-R4-R5 wherein R1 and R2 are each independently a linear or branched, saturated or unsaturated C2-C24 alkyl, or a linear or branched, saturated or unsaturated C2-C24 monoalkenyl or polyalkenyl, the polyalkenyl having from 2 to 4 double bonds, or a linear or branched, saturated or unsaturated C2-C24 monoalkinyl or polyalkinyl, the polyalkinyl having from 2 to 4 triple bonds; R3 is selected from 0, S, —C(R6)2-, —CH(R7)-, —C(S)—N(R6)-, —CH(SR7)-S—S— or —N(R6)- wherein R6 is a hydrogen atom or a C1-C4 alkyl, and R7 is a C1-C4 alkyl; R4 comprises at least one junction function and at least one linker; and R5 is at least one chemical fluorescent group or at least one targeting group. Methods for preparing said lipophilic compounds are also disclosed.
A fluorogenic ‘click’ reaction of azidoanthracene derivatives
作者:Fang Xie、Krishnamoorthy Sivakumar、Qingbing Zeng、Michael A. Bruckman、Blake Hodges、Qian Wang
DOI:10.1016/j.tet.2008.01.080
日期:2008.3
Fluorogenic reactions have broad applications in biolabeling, combinatorial synthesis of fluorescent dyes, and materials development. It was recently reported that the highly selective and efficient Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction can be employed in designing new types of fluorogenic reactions. In this study, we report a fluorogenic reaction using anthracene azides as starting materials. The fluorescence of the anthryl core can be greatly inhibited upon introducing electron-donating azido groups in the proximity. Such weakly fluorescent anthracene azides demonstrate high reactivity with a variety of alkynes under the CuAAC conditions producing a strongly fluorescent triazole product with high quantum yields. This reaction can be used in the synthesis and screening of fluorescent dyes combinatorially. Compared with most existing methods, the fluorogenic CuAAC reaction is a much milder and simpler technique to prepare large libraries of fluorescent dyes without further purification. In order to demonstrate the efficiency of using anthracene azides for biolabeling applications, both small molecules and biomolecules including the multialkyne-derivatized cowpea mosaic virus and tobacco mosaic virus had been studied. (C) 2008 Elsevier Ltd. All rights reserved.