Biological Properties of Heterocyclic Pyridinylimines and Pyridinylhydrazones
作者:Francislene J. Martins、Rebeca Mol Lima、Juliana Alves dos Santos、Patricia de Almeida Machado、Elaine Soares Coimbra、Adilson David da Silva、Nádia Rezende Barbosa Raposo
DOI:10.2174/1570180812666141216205601
日期:2015.10.30
This work describes the synthesis and biological properties of a series of 2- and 4-
pyridinylimines and pyridinylhydrazones. All compounds were evaluated in vitro against two species
of Leishmania. The antioxidant activity and the toxic effect against murine peritoneal macrophages of the compounds
were also performed. The synthesized compounds showed significant antileishmanial and antioxidant activities. For the
antileishmanial assay, compounds 1a, 1d and 2a were active against the Leishmania species, and compound 2a was the
most effective on promastigotes (IC50 value = 3.38 µM) and amastigotes (IC50 value = 18.96 µM) of L. amazonensis. Only
compound 2a exhibited toxicity against murine peritoneal macrophages (CC50 of 54.35 µM). However, this compound
was 2.8 times more destructive to the intracellular amastigotes than the host cell. Regarding the antioxidant activity, compounds
1a and 2a exhibited a strong antioxidant effect (IC50 values of 8.79 µM and 19.82 µM), compound 1a being better
than the L-ascorbic acid (9.48 µM), used as reference.
The effect of water molecules in stabilizing co-crystals of active pharmaceutical ingredients
作者:Christer B. Aakeröy、Safiyyah Forbes、John Desper
DOI:10.1039/c2ce06506a
日期:——
A series of co-crystallization reactions were carried out on two hydrazone compounds in order to determine their effectiveness in forming co-crystals in a consistent manner, as well as to establish whether their thermal behaviour can be tailored in a predictable fashion. The crystal structures of twelve hydrated co-crystals with both aromatic as well as aliphatic carboxylic acids are reported. In the structures that display structural consistency, the thermal behaviour of the bulk materials can be correlated with molecular structure.
Microwave and conventional synthesis of ester based dicationic pyridinium ionic liquids carrying hydrazone linkage: DNA binding, anticancer and docking studies
作者:Salsabeel A. Al-Sodies、Mohamed Reda Aouad、Saleh Ihmaid、Ateyatallah Aljuhani、Mouslim Messali、Imran Ali、Nadjet Rezki
DOI:10.1016/j.molstruc.2020.127756
日期:2020.5
alkyl functionalized esters forming the counter cations. Beside the synthesized halogenated DiILs 6–11, fluorinated metal anions were introduced via metathesis reaction in order to create new dipyridinium ionic liquid-hydrazone hybrids 12–29. All newly synthesized DiILs were fully characterized using different spectroscopic tools such as 1H, 13C, 19F, 31P, 11B NMR and Mass experiment. The DNA binding,
Lead(<scp>ii</scp>) coordination polymers driven by pyridine-hydrazine donors: from anion-guided self-assembly to structural features
作者:Ghodrat Mahmoudi、Farhad Akbari Afkhami、Alan R. Kennedy、Fedor I. Zubkov、Ennio Zangrando、Alexander M. Kirillov、Elies Molins、Mariusz P. Mitoraj、Damir A. Safin
DOI:10.1039/d0dt01704c
日期:——
extended supramolecular architectures, namely [Pb2(LI)(NCS)4]n (1), [Pb(HLII)I2]n (2), [Pb(LIII)I]n (3) and [Pb(HLIV)(NO3)2]n·nMeOH (4), which were self-assembled from different PbII salts and various pyridine-hydrazine based linkers, namely 1,2-bis(pyridin-3-ylmethylene)hydrazine (LI), (pyridin-4-ylmethylene)isonicotinohydrazide (HLII), 1-(pyridin-2-yl)ethylidenenicotinohydrazide (HLIII) and phenyl(pyr