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New thiophene–acridine compounds: Synthesis, antileishmanial activity, DNA binding, chemometric, and molecular docking studies
Author(s) -
Lima Serafim Vanessa,
Félix Mayara Barbalho,
Frade Silva Daiana Karla,
Rodrigues Klinger Antônio da Franca,
Andrade Patrícia Néris,
Almeida Sinara Mônica Vitalino,
Albuquerque dos Santos Sanderssonilo,
Oliveira Jamerson Ferreira,
Lima Maria do Carmo Alves,
MendonçaJunior Francisco Jaime Bezerra,
Scotti Marcus Tullius,
Oliveira Márcia Rosa,
Moura Ricardo Olímpio
Publication year - 2018
Publication title -
chemical biology and drug design
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.59
H-Index - 77
eISSN - 1747-0285
pISSN - 1747-0277
DOI - 10.1111/cbdd.13176
Subject(s) - chemistry , thiophene , acridine , docking (animal) , stereochemistry , moiety , combinatorial chemistry , organic chemistry , medicine , nursing
In this study, we synthesized eight new compounds containing the 2‐amino‐cycloalkyl[b]thiophene and acridine moieties ( ACT 01 and ACS 01 ‐ ACS 07 ). None tested compounds presented human erythrocyte cytotoxicity. The new compounds presented antipromastigote activity, where ACS 01 and ACS 02 derivatives presented significant antileishmanial activity, with better performance than the reference drugs (tri and pentavalent antimonials), with respective IC 50 values of 9.60 ± 3.19 and 10.95 ± 3.96 μ m . Additionally, these two derivatives were effective against antimony‐resistant Leishmania ( Leishmania ) amazonensis strains. In addition, binding and fragmentation DNA assays were performed. It was observed that the antileishmanial activity of ACS 01 is not associated with DNA fragmentation of the promastigote forms. However, it interacted with DNA with a binding constant of 10 4 m −1 . In partial least‐squares studies, it was observed that the most active compounds ( ACS 01 and ACS 02 ) showed lower values of amphiphilic moment descriptor, but there was a correlation between the lipophilicity of the molecules and antileishmanial activity. Furthermore, the docking molecular studies showed interactions between thiophene–acridine derivatives and the active site of pyruvate kinase enzyme with the major contribution of asparagine 152 residue for the interaction with thiophene moiety. Thus, the results suggested that the new thiophene–acridine derivatives are promising molecules as potential drug candidates.