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Grieco I, Bassani D, Trevisan L, Salmaso V, Cescon E, Prencipe F, Da Ros T, Martinez-Gonzalez L, Martinez A, Spalluto G, Moro S, Federico S. 7-Amino-[1,2,4]triazolo[1,5-a][1,3,5]triazines as CK1δ inhibitors: Exploring substitutions at the 2 and 5-positions. Bioorg Chem 2024; 151:107659. [PMID: 39059072 DOI: 10.1016/j.bioorg.2024.107659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 07/08/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024]
Abstract
CK1δ is a serine-threonine kinase involved in several pathological conditions including neuroinflammation and neurodegenerative disorders like Alzheimer's disease, Parkinson's disease, and Amyotrophic Lateral Sclerosis. Specifically, it seems that an inhibition of CK1δ could have a neuroprotective effect in these conditions. Here, a series of [1,2,4]triazolo[1,5-a][1,3,5]triazines were developed as ATP-competitive CK1δ inhibitors. Both positions 2 and 5 have been explored leading to a total of ten compounds exhibiting IC50s comprised between 29.1 µM and 2.08 µM. Three of the four most potent compounds (IC50 < 3 µM) bear a thiophene ring at the 2 position. All compounds have been submitted to computational studies that identified the chain composed of at least 2 atoms (e.g., nitrogen and carbon atoms) at the 5 position as crucial to determine a key bidentate hydrogen bond with Leu85 of CK1δ. Most potent compounds have been tested in vitro, resulting passively permeable to the blood-brain barrier and, safe and slight neuroprotective on a neuronal cell model. These results encourage to further structural optimize the series to obtain more potent CK1δ inhibitors as possible neuroprotective agents to be tested on models of the above-mentioned neurodegenerative diseases.
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Affiliation(s)
- Ilenia Grieco
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy.
| | - Davide Bassani
- Molecular Modeling Section (MMS), Dipartimento di Scienze del Farmaco, Università di Padova, via Marzolo 5, 35131 Padova, Italy.
| | - Letizia Trevisan
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy.
| | - Veronica Salmaso
- Molecular Modeling Section (MMS), Dipartimento di Scienze del Farmaco, Università di Padova, via Marzolo 5, 35131 Padova, Italy.
| | - Eleonora Cescon
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy.
| | - Filippo Prencipe
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy.
| | - Tatiana Da Ros
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy.
| | - Loreto Martinez-Gonzalez
- Centro de Investigaciones Biologicas, CSIC, Avenida Ramiro de Maeztu 9, 28040 Madrid, Spain; Centro de investigación biomédica en red en enfermedades neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Spain.
| | - Ana Martinez
- Centro de Investigaciones Biologicas, CSIC, Avenida Ramiro de Maeztu 9, 28040 Madrid, Spain; Centro de investigación biomédica en red en enfermedades neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Spain.
| | - Giampiero Spalluto
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy.
| | - Stefano Moro
- Molecular Modeling Section (MMS), Dipartimento di Scienze del Farmaco, Università di Padova, via Marzolo 5, 35131 Padova, Italy.
| | - Stephanie Federico
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy.
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Parhizkari M, Bayat M, Hosseini FS. Simple Synthesis of 2-Amino- N'-(9 H-Fluoren-9-Ylidene)-Hexahydroquinoline-3-Carbohydrazide Derivatives. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.1974500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Marzieh Parhizkari
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Mohammad Bayat
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Fahimeh Sadat Hosseini
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
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Grieco I, Bissaro M, Tiz DB, Perez DI, Perez C, Martinez A, Redenti S, Mariotto E, Bortolozzi R, Viola G, Cozza G, Spalluto G, Moro S, Federico S. Developing novel classes of protein kinase CK1δ inhibitors by fusing [1,2,4]triazole with different bicyclic heteroaromatic systems. Eur J Med Chem 2021; 216:113331. [PMID: 33721670 DOI: 10.1016/j.ejmech.2021.113331] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/21/2021] [Accepted: 02/21/2021] [Indexed: 11/15/2022]
Abstract
Protein kinase CK1δ expression and activity is involved in different pathological situations that include neuroinflammatory and neurodegenerative diseases. For this reason, protein kinase CK1δ has become a possible therapeutic target for these conditions. 5,6-fused bicyclic heteroaromatic systems that resemble adenine of ATP represent optimal scaffolds for the development of a new class of ATP competitive CK1δ inhibitors. In particular, a new series of [1,2,4]triazolo[1,5-c]pyrimidines and [1,2,4]triazolo[1,5-a][1,3,5]triazines was developed. Some crucial interactors have been identified, such as the presence of a free amino group able to interact with the residues of the hinge region at the 5- and 7- positions of the [1,2,4]triazolo[1,5-c]pyrimidine and [1,2,4]triazolo[1,5-a][1,3,5]triazine scaffolds, respectively; or the presence of a 3-hydroxyphenyl or 3,5-dihydroxyphenyl moiety at the 2- position of both nuclei. Molecular modeling studies identified the key interactions involved in the inhibitor-protein recognition process that appropriately fit with the outlined structure-activity relationship. Considering the fact that the CK1 protein kinase is involved in various pathologies in particular of the central nervous system, the interest in the development of new inhibitors permeable to the blood-brain barrier represents today an important goal in the pharmaceutical field. The best potent compound of the series is the 5-(7-amino-5-(benzylamino)-[1,2,4]triazolo[1,5-a][1,3,5]triazin-2-yl)benzen-1,3-diol (compound 51, IC50 = 0.18 μM) that was predicted to have an intermediate ability to cross the membrane in our in vitro assay and represents an optimal starting point to both studies the therapeutic value of protein kinase CK1δ inhibition and to develop new more potent derivatives.
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Affiliation(s)
- Ilenia Grieco
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via Licio Giorgieri 1, 34127, Trieste, Italy
| | - Maicol Bissaro
- Molecular Modeling Section (MMS), Dipartimento di Scienze del Farmaco, Università degli Studi di Padova, via Marzolo 5, 35131, Padova, Italy
| | - Davide Benedetto Tiz
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via Licio Giorgieri 1, 34127, Trieste, Italy
| | - Daniel I Perez
- Centro de Investigaciones Biologicas, CSIC, Ramiro de Maetzu 9, 28040, Madrid, Spain
| | - Conception Perez
- Instituto de Quimica Medica, CSIC, Juan de la Cierva 3, 28006, Madrid, Spain
| | - Ana Martinez
- Centro de Investigaciones Biologicas, CSIC, Ramiro de Maetzu 9, 28040, Madrid, Spain; Centro de Investigacion Biomedica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto Carlos III, 28031, Madrid, Spain
| | - Sara Redenti
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via Licio Giorgieri 1, 34127, Trieste, Italy
| | - Elena Mariotto
- Dipartimento di Salute della Donna e del Bambino, Laboratorio di Oncoematologia, Università di Padova, 35131, Padova, Italy
| | - Roberta Bortolozzi
- Istituto di Ricerca Pediatrica (IRP), Corso Stati Uniti 4, 35128, Padova, Italy
| | - Giampietro Viola
- Dipartimento di Salute della Donna e del Bambino, Laboratorio di Oncoematologia, Università di Padova, 35131, Padova, Italy; Istituto di Ricerca Pediatrica (IRP), Corso Stati Uniti 4, 35128, Padova, Italy
| | - Giorgio Cozza
- Dipartimento di Medicina Molecolare, Università degli Studi di Padova, Via U. Bassi 58/B, 35131, Padova, Italy
| | - Giampiero Spalluto
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via Licio Giorgieri 1, 34127, Trieste, Italy
| | - Stefano Moro
- Molecular Modeling Section (MMS), Dipartimento di Scienze del Farmaco, Università degli Studi di Padova, via Marzolo 5, 35131, Padova, Italy
| | - Stephanie Federico
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via Licio Giorgieri 1, 34127, Trieste, Italy.
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Kundu K, Nayak SK. Total Syntheses of Malabaricones B and C via a Cross-Metathesis Strategy. JOURNAL OF NATURAL PRODUCTS 2017; 80:1776-1782. [PMID: 28581739 DOI: 10.1021/acs.jnatprod.6b01119] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The malabaricones A-D belong to the class of diarylnonanoids isolated from the Myristicaceae family of plants. Although malabaricone C displayed various interesting biological activities, its isolation remains tedious due to its close chemical similarity to malabaricones A, B, and D. Therefore, development of an efficient synthesis route has become essential to cater to the need of large amounts of malabaricone C for its pharmacological profiling. So far there is only one report of the synthesis of malabaricone C through a lengthy sequence of reactions. We have developed an efficient and short route for the syntheses of malabaricones B and C, which will also provide a convenient access to all other members of the malabaricone family. Synthesis of an important building block, ω-aryl heptyl bromide, employed in the synthesis was realized by adopting a cross-metathesis reaction as the key step.
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Affiliation(s)
- Kshama Kundu
- Bio-Organic Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085, India
| | - Sandip K Nayak
- Bio-Organic Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085, India
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