RT Journal Article T1 Structure-Activity relationship studies on a TPR dendrimer with dual activities against HIV and enterovirus A71. Modifications on the amino acid A1 Martínez Gualda, Belén V. A1 Sun, Liang A1 Rivero Buceta, Eva María A1 Flores Aguilar-Amat, Aída A1 Quesada Del Sol, Ernesto A1 Balzarini, Jan A1 Noppen, Sam A1 Liekens, Sandra A1 Schols, Dominique A1 Neyts, Johan A1 Leyssen, Pieter A1 Mirabelli, Carmen A1 Camarasa Rius, María José A1 San Félix García, Ana Rosa AB We have recently described a new class of dendrimers with tryptophan (Trp) on the surface that show dual antiviral activities against HIV and EV71 enterovirus. The prototype compound of this family is a pentaerythritol derivative with 12 Trps on the periphery. Here we complete the structure-activity relationship studies of this family to identify key features that might be significant for the antiviral activity. With this aim, novel dendrimers containing different amino acids (aromatic and non-aromatic), tryptamine (a “decarboxylated” analogue of Trp) and N-methyl Trp on the periphery have been prepared. Dendrimer with N-Methyl Trp was the most active against HIV-1 and HIV-2 while dendrimer with tyrosine was endowed with the most potent antiviral activity against EV71. This tyrosine dendrimer proved to inhibit a large panel of EV71 clinical isolates (belonging to different clusters) in the low nanomolar/high picomolar range. In addition, a new synthetic procedure (convergent approach) has been developed for the synthesis of the prototype and some other dendrimers. This convergent approach proved more efficient (higher yields, easier purification) than the divergent approach previously reported. PB Elsevier SN 0166-3542 YR 2017 FD 2017-03 LK https://hdl.handle.net/20.500.14352/99617 UL https://hdl.handle.net/20.500.14352/99617 LA eng NO Martínez-Gualda B, Sun L, Rivero-Buceta E, Flores A, Quesada E, Balzarini J, et al. Structure-activity relationship studies on a Trp dendrimer with dual activities against HIV and enterovirus A71. Modifications on the amino acid. Antiviral Research 2017;139:32–40. https://doi.org/10.1016/j.antiviral.2016.12.010 NO Ministerio de Economía, Comercio y Empresa (España) NO KU Leuven NO Belgian Interuniversity Attraction Poles NO China Scholarship Council DS Docta Complutense RD 19 mar 2026