Abstract:
:Cardanol is a phenolic lipid component of cashew nut shell liquid (CNSL), obtained as the byproduct of cashew nut food processing. Being a waste product, it has attracted much attention as a precursor for the production of high-value chemicals, including drugs. On the basis of these findings and in connection with our previous studies on cardanol derivatives as acetylcholinesterase (AChE) inhibitors, we designed a novel series of analogues by including a protonable amino moiety belonging to different systems. Properly addressed docking studies suggested that the proposed structural modifications would allow the new molecules to interact with both the catalytic active site (CAS) and the peripheral anionic site (PAS) of AChE, thus being able to act as dual binding inhibitors. To disclose whether the new molecules showed the desired profile, they were first tested for their cholinesterase inhibitory activity towards EeAChE and eqBuChE. Compound 26, bearing an N-ethyl-N-(2-methoxybenzyl)amine moiety, showed the highest inhibitory activity against EeAChE, with a promising IC50 of 6.6 μM, and a similar inhibition profile of the human isoform (IC50 = 5.7 μM). As another positive feature, most of the derivatives did not show appreciable toxicity against HT-29 cells, up to a concentration of 100 μM, which indicates drug-conform behavior. Also, compound 26 is capable of crossing the blood-brain barrier (BBB), as predicted by a PAMPA-BBB assay. Collectively, the data suggest that the approach to obtain potential anti-Alzheimer drugs from CNSL is worth of further pursuit and development.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Lemes LFN,de Andrade Ramos G,de Oliveira AS,da Silva FMR,de Castro Couto G,da Silva Boni M,Guimarães MJR,Souza INO,Bartolini M,Andrisano V,do Nascimento Nogueira PC,Silveira ER,Brand GD,Soukup O,Korábečný J,Romeiro NC,Casdoi
10.1016/j.ejmech.2015.12.024subject
Has Abstractpub_date
2016-01-27 00:00:00pages
687-700eissn
0223-5234issn
1768-3254pii
S0223-5234(15)30412-8journal_volume
108pub_type
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