Issue 10, 2020

Synthesis and biological screening of a library of macamides as TNF-α inhibitors

Abstract

Thirty-five macamide analogues were synthesised by modifying the initial molecular structure. The resulting structures were confirmed using NMR and MS. Cytotoxicity and the anti-inflammatory activity of these synthetic macamides were evaluated in the THP-1 cell line. Preliminary biological evaluation indicated that most of these synthetic macamides did not present cytotoxicity (MTT assay) in the tested cell line with respect to the control (actinomycin D). Regarding the anti-inflammatory activity, several analogues had a greater potential for inhibition of TNF-α than natural macamides. Synthetic macamide 4a was the most active (IC50 = 0.009 ± 0.001 μM) compared to the C87 (control). Through looking at the link between the chemical structure and the activity, our study proves that changes made to natural macamides at the level of the alkyl chain, the benzyl position, the amide bond, and the addition of two methyl groups to the aromatic ring (meta position) lead us to obtaining new macamides with greater anti-inflammatory activity.

Graphical abstract: Synthesis and biological screening of a library of macamides as TNF-α inhibitors

Supplementary files

Article information

Article type
Research Article
Submitted
16 Jun 2020
Accepted
27 Jul 2020
First published
06 Aug 2020

RSC Med. Chem., 2020,11, 1196-1209

Synthesis and biological screening of a library of macamides as TNF-α inhibitors

V. Tena Pérez, L. Apaza Ticona, A. M. Serban, J. Acero Gómez and Á. Rumbero Sánchez, RSC Med. Chem., 2020, 11, 1196 DOI: 10.1039/D0MD00208A

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