- Discovery and SAR Evolution of Pyrazole Azabicyclo[3.2.1]octane Sulfonamides as a Novel Class of Non-CovalentN-Acylethanolamine-Hydrolyzing Acid Amidase (NAAA) Inhibitors for Oral Administration
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Inhibition of intracellularN-acylethanolamine-hydrolyzing acid amidase (NAAA) activity is a promising approach to manage the inflammatory response under disabling conditions. In fact, NAAA inhibition preserves endogenous palmitoylethanolamide (PEA) from degradation, thus increasing and prolonging its anti-inflammatory and analgesic efficacy at the inflamed site. In the present work, we report the identification of a potent, systemically available, novel class of NAAA inhibitors, featuring a pyrazole azabicyclo[3.2.1]octane structural core. After an initial screening campaign, a careful structure-activity relationship study led to the discovery ofendo-ethoxymethyl-pyrazinyloxy-8-azabicyclo[3.2.1]octane-pyrazole sulfonamide50(ARN19689), which was found to inhibit human NAAA in the low nanomolar range (IC50= 0.042 μM) with a non-covalent mechanism of action. In light of its favorable biochemical, in vitro and in vivo drug-like profile, sulfonamide50could be regarded as a promising pharmacological tool to be further investigated in the field of inflammatory conditions.
- Armirotti, Andrea,Bandiera, Tiziano,Berti, Francesco,Bertorelli, Rosalia,Bertozzi, Fabio,Bertozzi, Sine Mandrup,Bottegoni, Giovanni,Carbone, Anna,Di Fruscia, Paolo,Fiasella, Annalisa,Giacomina, Francesca,Mengatto, Luisa,Nuzzi, Andrea,Ortega, Jose Antonio,Pagliuca, Chiara,Penna, Ilaria,Pizzirani, Daniela,Ponzano, Stefano,Reggiani, Angelo,Romeo, Elisa,Russo, Debora,Summa, Maria,Tarozzo, Glauco,Giampà, Roberta
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p. 13327 - 13355
(2021/09/20)
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- THERAPEUTICALLY ACTIVE BICYCLIC-SULPHONAMIDES AND PHARMACEUTICAL COMPOSITIONS
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Pharmaceutical compounds have a bicyclic-sulphonamide structure and pharmaceutical compositions including the compounds may be used in therapy as brain-cell-death protectants and may be used, for example, in the treatment of chronic neurodegenerative diseases. The compounds are active as inhibitors of N-acylethanolamine-hydrolysing acid amidase (NAAA) and may be used for the therapeutic treatment and prevention of pain and inflammatory disorders and other disorders which benefit from the modulation of fatty acid ethanolamides, particularly palmitoylethanolamide (PEA).
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- BICYCLIC PIPERIDINE DERIVATIVES AS ANTAGONISTS OF THE CCR1 CHEMOKINE RECEPTOR
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A compound of the formula (I) wherein a, b, cR1, R2, R3, R4, R5, R6, Q, W, Y, and Z are defined as above, useful as potent and selective inhibitors of MIP-1α(CCL3) binding to its receptor CCR1 found on inflammatory and immunomodulatory cells (preferably leukocytes and lymphocytes).
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