52478-47-4Relevant academic research and scientific papers
Zinc porphyrin-re(I) bipyridyl-fullerene triad: Synthesis, characterization, and kinetics of the stepwise electron-transfer processes initiated by visible excitation
Cavigli, Paolo,Da Ros, Tatiana,Kahnt, Axel,Gamberoni, Marta,Indelli, Maria Teresa,Iengo, Elisabetta
, p. 280 - 292 (2015/03/04)
A new triad system featuring one zinc porphyrin and one fullerene moieties attached to a central redox-active Re(I) connector was obtained in remarkable yield by cleverly exploiting a facile two-step synthesis. Detailed description and discussion on the characterization of this multicomponent system and of its parent free-base analogue are presented, along with a kinetic study of the stepwise electron-transfer processes occurring upon visible excitation.
New insights into molecular recognition of 1,1-bisphosphonic acids by farnesyl diphosphate synthase
Ferrer-Casal, Mariana,Li, Catherine,Galizzi, Melina,Stortz, Carlos A.,Szajnman, Sergio H.,Docampo, Roberto,Moreno, Silvia N.J.,Rodriguez, Juan B.
, p. 398 - 405 (2014/01/17)
As part of our project pointed at the search of new antiparasitic agents against American trypanosomiasis (Chagas disease) and toxoplasmosis a series of 2-alkylaminoethyl-1-hydroxy-1,1-bisphosphonic acids has been designed, synthesized and biologically evaluated against the etiologic agents of these parasitic diseases, Trypanosoma cruzi and Toxoplasma gondii, respectively, and also towards their target enzymes, T. cruzi and T. gondii farnesyl pyrophosphate synthase (FPPS), respectively. Surprisingly, while most pharmacologically active bisphosphonates have a hydroxyl group at the C-1 position, the additional presence of an amino group at C-3 resulted in decreased activity towards either T. cruzi cells or TcFPPS. Density functional theory calculations justify this unexpected behavior. Although these compounds were devoid of activity against T. cruzi cells and TcFPPS, they were efficient growth inhibitors of tachyzoites of T. gondii. This activity was associated with a potent inhibition of the enzymatic activity of TgFPPS. Compound 28 arises as a main example of this family of compounds exhibiting an ED50 value of 4.7 μM against tachyzoites of T. gondii and an IC50 of 0.051 μM against TgFPPS.
