Discovery of 1,5-Diphenylpyrazole-3-Carboxamide Derivatives as Potent, Reversible, and Selective Monoacylglycerol Lipase (MAGL) Inhibitors. 2018

Mojgan Aghazadeh Tabrizi, and Pier Giovanni Baraldi, and Stefania Baraldi, and Emanuela Ruggiero, and Lucia De Stefano, and Flavio Rizzolio, and Lorenzo Di Cesare Mannelli, and Carla Ghelardini, and Andrea Chicca, and Margherita Lapillo, and Jürg Gertsch, and Clementina Manera, and Marco Macchia, and Adriano Martinelli, and Carlotta Granchi, and Filippo Minutolo, and Tiziano Tuccinardi
Department of Chemical and Pharmaceutical Sciences, University of Ferrara , 44121 Ferrara, Italy.

Monoacylglycerol lipase (MAGL) is a serine hydrolase that plays an important role in the degradation of the endocannabinoid neurotransmitter 2-arachidonoylglycerol, which is implicated in many physiological processes. Beyond the possible utilization of MAGL inhibitors as anti-inflammatory, antinociceptive, and anticancer agents, their application has encountered obstacles due to the unwanted effects caused by the irreversible inhibition of this enzyme. The possible application of reversible MAGL inhibitors has only recently been explored, mainly due to the deficiency of known compounds possessing efficient reversible inhibitory activities. In this work, we report a new series of reversible MAGL inhibitors. Among them, compound 26 showed to be a potent MAGL inhibitor (IC50 = 0.51 μM, Ki = 412 nM) with a good selectivity versus fatty acid amide hydrolase (FAAH), α/β-hydrolase domain-containing 6 (ABHD6), and 12 (ABHD12). Interestingly, this compound also possesses antiproliferative activities against two different cancer cell lines and relieves the neuropathic hypersensitivity induced in vivo by oxaliplatin.

UI MeSH Term Description Entries
D008297 Male Males
D008994 Monoacylglycerol Lipases An enzyme that catalyzes the hydrolysis of glycerol monoesters of long-chain fatty acids EC 3.1.1.23. Glycerol Monoester Hydrolase,Glycerol Monoester Hydrolases,Monoacylglycerol Lipase,Monoglyceride Esterase,Monoglyceride Esterases,Monoglyceride Lipase,Monoglyceride Lipases,Monoglyceride Hydrolase,Esterase, Monoglyceride,Esterases, Monoglyceride,Hydrolase, Glycerol Monoester,Hydrolase, Monoglyceride,Hydrolases, Glycerol Monoester,Lipase, Monoacylglycerol,Lipase, Monoglyceride,Lipases, Monoacylglycerol,Lipases, Monoglyceride,Monoester Hydrolase, Glycerol,Monoester Hydrolases, Glycerol
D009437 Neuralgia Intense or aching pain that occurs along the course or distribution of a peripheral or cranial nerve. Nerve Pain,Neurodynia,Paroxysmal Nerve Pain,Neuralgia, Atypical,Neuralgia, Iliohypogastric Nerve,Neuralgia, Ilioinguinal,Neuralgia, Perineal,Neuralgia, Stump,Neuralgia, Supraorbital,Neuralgia, Vidian,Neuropathic Pain,Atypical Neuralgia,Atypical Neuralgias,Iliohypogastric Nerve Neuralgia,Iliohypogastric Nerve Neuralgias,Ilioinguinal Neuralgia,Ilioinguinal Neuralgias,Nerve Neuralgia, Iliohypogastric,Nerve Neuralgias, Iliohypogastric,Nerve Pain, Paroxysmal,Nerve Pains,Nerve Pains, Paroxysmal,Neuralgias,Neuralgias, Atypical,Neuralgias, Iliohypogastric Nerve,Neuralgias, Ilioinguinal,Neuralgias, Perineal,Neuralgias, Stump,Neuralgias, Supraorbital,Neuralgias, Vidian,Neurodynias,Neuropathic Pains,Pain, Nerve,Pain, Neuropathic,Pain, Paroxysmal Nerve,Pains, Nerve,Pains, Neuropathic,Pains, Paroxysmal Nerve,Paroxysmal Nerve Pains,Perineal Neuralgia,Perineal Neuralgias,Stump Neuralgia,Stump Neuralgias,Supraorbital Neuralgia,Supraorbital Neuralgias,Vidian Neuralgia,Vidian Neuralgias
D011487 Protein Conformation The characteristic 3-dimensional shape of a protein, including the secondary, supersecondary (motifs), tertiary (domains) and quaternary structure of the peptide chain. PROTEIN STRUCTURE, QUATERNARY describes the conformation assumed by multimeric proteins (aggregates of more than one polypeptide chain). Conformation, Protein,Conformations, Protein,Protein Conformations
D011720 Pyrazoles Azoles of two nitrogens at the 1,2 positions, next to each other, in contrast with IMIDAZOLES in which they are at the 1,3 positions.
D004791 Enzyme Inhibitors Compounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction. Enzyme Inhibitor,Inhibitor, Enzyme,Inhibitors, Enzyme
D000700 Analgesics Compounds capable of relieving pain without the loss of CONSCIOUSNESS. Analgesic,Anodynes,Antinociceptive Agents,Analgesic Agents,Analgesic Drugs,Agents, Analgesic,Agents, Antinociceptive,Drugs, Analgesic
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013379 Substrate Specificity A characteristic feature of enzyme activity in relation to the kind of substrate on which the enzyme or catalytic molecule reacts. Specificities, Substrate,Specificity, Substrate,Substrate Specificities
D045744 Cell Line, Tumor A cell line derived from cultured tumor cells. Tumor Cell Line,Cell Lines, Tumor,Line, Tumor Cell,Lines, Tumor Cell,Tumor Cell Lines

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