Abstract:
:A new series of sixteen multifunctional N-benzyl-piperidine-aryl-acylhydrazones hybrid derivatives was synthesized and evaluated for multi-target activities related to Alzheimer's disease (AD). The molecular hybridization approach was based on the combination, in a single molecule, of the pharmacophoric N-benzyl-piperidine subunit of donepezil, the substituted hydroxy-piperidine fragment of the AChE inhibitor LASSBio-767, and an acylhydrazone linker, a privileged structure present in a number of synthetic aryl- and aryl-acylhydrazone derivatives with significant AChE and anti-inflammatory activities. Among them, compounds 4c, 4d, 4g and 4j presented the best AChE inhibitory activities, but only compounds 4c and 4g exhibited concurrent anti-inflammatory activity in vitro and in vivo, against amyloid beta oligomer (AβO) induced neuroinflammation. Compound 4c also showed the best in vitro and in vivo neuroprotective effects against AβO-induced neurodegeneration. In addition, compound 4c showed a similar binding mode to donepezil in both acetylated and free forms of AChE enzyme in molecular docking studies and did not show relevant toxic effects on in vitro and in vivo assays, with good predicted ADME parameters in silico. Overall, all these results highlighted compound 4c as a promising and innovative multi-target drug prototype candidate for AD treatment.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Dias Viegas FP,de Freitas Silva M,Divino da Rocha M,Castelli MR,Riquiel MM,Machado RP,Vaz SM,Simões de Lima LM,Mancini KC,Marques de Oliveira PC,Morais ÉP,Gontijo VS,da Silva FMR,D'Alincourt da Fonseca Peçanha D,Castro NG,Ndoi
10.1016/j.ejmech.2018.01.066subject
Has Abstractpub_date
2018-03-10 00:00:00pages
48-65eissn
0223-5234issn
1768-3254pii
S0223-5234(18)30079-5journal_volume
147pub_type
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