Radiosynthesis and micro-SPECT analysis of triazole-based RGD integrin ligands as non-peptide molecular imaging probes for angiogenesis
摘要:
Taking advantage of click chemistry, we synthesized triazole-containing RGD peptidomimetics capable of binding to alpha(v)beta(3) integrin with diverse potency, and selected I-125-labeled compounds proved to interact in vitro and in vivo with alpha(v)beta(3) integrin expressed by melanoma cells. Two I-125-compounds containing either 2-aminobenzimidazole or 2-aminopyridine groups as the arginine bioisostere with the capacity to selectively bind cells of highly expressing alpha(v)beta(3) melanoma xenografts were found using micro-SPECT imaging studies. (C) 2015 Elsevier Ltd. All rights reserved.
[EN] 1,2,3-TRIAZOLE-BASED PEPTIDOMIMETIC INTEGRIN INHIBITORS FOR THE DIAGNOSIS AND THERAPY OF TUMORS<br/>[FR] INHIBITEURS PEPTIDOMIMÉTIQUES DE L'INTÉGRINE À BASE DE 1,2,3 TRIAZOLE POUR LE DIAGNOSTIC ET LE TRAITEMENT DE TUMEURS
申请人:UNIV FIRENZE
公开号:WO2011098603A1
公开(公告)日:2011-08-18
The present invention refers to the field of chemical compounds bearing a 1,2,3-triazole ring of formula (I) and possessing guanidino and carboxylic groups or their isosteres, their preparation by Cu-catalyzed "click-chemistry", and medical - diagnostic use in pathologies where angiogenesis is altered, for example pathologic conditions of tumor origin, tumor metastasis, osteoporosis, and rheumatoid arthritis.
1,2,3-TRIAZOLE-BASED PEPTIDOMIMETIC INTEGRIN INHIBITORS FOR THE DIAGNOSIS AND THERAPY OF TUMORS
申请人:Guarna Antonio
公开号:US20130040964A1
公开(公告)日:2013-02-14
The present invention refers to the field of chemical compounds bearing a 1,2,3-triazole ring of formula (I) and possessing guanidino and carboxylic groups or their isosteres, their preparation by Cu-catalyzed “click-chemistry”, and medical-diagnostic use in pathologies where angiogenesis is altered, for example pathologic conditions of tumor origin, tumor metastasis, osteoporosis, and rheumatoid arthritis.
Cationic 1,2,3-Triazolium Alkynes: Components To Enhance 1,4-Regioselective Azide–Alkyne Cycloaddition Reactions
作者:Zaira Monasterio、Maialen Sagartzazu-Aizpurua、José I. Miranda、Yuri Reyes、Jesus M. Aizpurua
DOI:10.1021/acs.orglett.6b00055
日期:2016.2.19
thermal [3 + 2] cycloadditionreactions with azides roughly 50- to 100-fold faster than comparable noncharged alkynes. Further, the reaction is highly 1,4-regioselective (dr up to 99:1) owing to the selective stabilization of 1,4-TS transition states via conjugative π-acceptor assistance of the alkyne triazolium ring. The novel cationic triazolium alkynes also accelerate the CuAAC reaction to provide bis(1