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Colombo D, Albergati A, Ferrandi EE, Tessaro D, Gatti FG, Brenna E, Monti D, Parmeggiani F. Chemo‐enzymatic synthesis of enantioenriched (R)‐ and (S)‐aryloxyalkanoic herbicides. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Danilo Colombo
- Politecnico di Milano Dipartimento di Chimica Materiali e Ingegneria Chimica Giulio Natta CMIC ITALY
| | | | | | - Davide Tessaro
- Politecnico di Milano Dipartimento di Chimica Materiali e Ingegneria Chimica Giulio Natta CMIC ITALY
| | - Francesco Gilberto Gatti
- Politecnico di Milano Dipartimento di Chimica Materiali e Ingegneria Chimica Giulio Natta CMIC ITALY
| | - Elisabetta Brenna
- Politecnico di Milano Dipartimento di Chimica Materiali e Ingegneria Chimica Giulio Natta CMIC ITALY
| | - Daniela Monti
- CNR: Consiglio Nazionale delle Ricerche SCITEC ITALY
| | - Fabio Parmeggiani
- Polytechnic of Milan: Politecnico di Milano Dipartimento di Chimica, Materiali e Ingegneria Chimica Via Mancinelli 7 20131 Milano ITALY
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2
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Del Bello F, Cilia A, Carrieri A, Fasano DC, Ghelardini C, Di Cesare Mannelli L, Micheli L, Santini C, Diamanti E, Giannella M, Giorgioni G, Mammoli V, Paoletti CD, Petrelli R, Piergentili A, Quaglia W, Pigini M. The Versatile 2-Substituted Imidazoline Nucleus as a Structural Motif of Ligands Directed to the Serotonin 5-HT1A
Receptor. ChemMedChem 2016; 11:2287-2298. [DOI: 10.1002/cmdc.201600383] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 08/30/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Fabio Del Bello
- School of Pharmacy; Medicinal Chemistry Unit; University of Camerino; Via S. Agostino 1 62032 Camerino Italy
| | - Antonio Cilia
- Recordati S.p.A.; Drug Discovery; via Civitali 1 20148 Milano (Italy)
| | - Antonio Carrieri
- Department of Pharmacy-Drug Science; University of Bari “Aldo Moro”; Via E. Orabona 4 70125 Bari Italy
| | - Domenico Claudio Fasano
- Department of Pharmacy-Drug Science; University of Bari “Aldo Moro”; Via E. Orabona 4 70125 Bari Italy
| | - Carla Ghelardini
- Department of Neuroscience, Psychology, Drug Research and; Child Health - Neurofarba - Pharmacology and Toxicology Section; University of Florence; Viale Pieraccini 6 50039 Firenze Italy
| | - Lorenzo Di Cesare Mannelli
- Department of Neuroscience, Psychology, Drug Research and; Child Health - Neurofarba - Pharmacology and Toxicology Section; University of Florence; Viale Pieraccini 6 50039 Firenze Italy
| | - Laura Micheli
- Department of Neuroscience, Psychology, Drug Research and; Child Health - Neurofarba - Pharmacology and Toxicology Section; University of Florence; Viale Pieraccini 6 50039 Firenze Italy
| | - Carlo Santini
- School of Science and Technology; University of Camerino; Via S. Agostino 1 62032 Camerino Italy
| | - Eleonora Diamanti
- School of Pharmacy; Medicinal Chemistry Unit; University of Camerino; Via S. Agostino 1 62032 Camerino Italy
| | - Mario Giannella
- School of Pharmacy; Medicinal Chemistry Unit; University of Camerino; Via S. Agostino 1 62032 Camerino Italy
| | - Gianfabio Giorgioni
- School of Pharmacy; Medicinal Chemistry Unit; University of Camerino; Via S. Agostino 1 62032 Camerino Italy
| | - Valerio Mammoli
- School of Pharmacy; Medicinal Chemistry Unit; University of Camerino; Via S. Agostino 1 62032 Camerino Italy
| | - Corinne Dalila Paoletti
- School of Pharmacy; Medicinal Chemistry Unit; University of Camerino; Via S. Agostino 1 62032 Camerino Italy
| | - Riccardo Petrelli
- School of Pharmacy; Medicinal Chemistry Unit; University of Camerino; Via S. Agostino 1 62032 Camerino Italy
| | - Alessandro Piergentili
- School of Pharmacy; Medicinal Chemistry Unit; University of Camerino; Via S. Agostino 1 62032 Camerino Italy
| | - Wilma Quaglia
- School of Pharmacy; Medicinal Chemistry Unit; University of Camerino; Via S. Agostino 1 62032 Camerino Italy
| | - Maria Pigini
- School of Pharmacy; Medicinal Chemistry Unit; University of Camerino; Via S. Agostino 1 62032 Camerino Italy
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3
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Pinder JL, Davis RE, Charrier JD. A facile, one-pot procedure for the formation of benzimidazoles from esters using DABAL-Me3, an air stable source of AlMe3. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.06.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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4
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Zhang F, Du J, Wang Q, Hu Q, Zhang J, Ding D, Zhao Y, Yang F, Wang E, Zhou H. Discovery of N-(4-sulfamoylphenyl)thioureas as Trypanosoma brucei leucyl-tRNA synthetase inhibitors. Org Biomol Chem 2014; 11:5310-24. [PMID: 23842857 DOI: 10.1039/c3ob40236c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Human African trypanosomiasis (HAT) is one of the most neglected diseases in the tropic regions, which is fatal if not treated in time. There is an urgent need for new therapeutics, especially those in new chemical classes. Leucyl-tRNA synthetase (LeuRS) has been paid much attention as a recently clinically validated antimicrobial target. Our group has previously reported T. brucei LeuRS (TbLeuRS) inhibitors, including benzoxaboroles targeting the editing site and pyrrolinones targeting the synthetic site. Here we report the discovery of N-(4-sulfamoylphenyl)thioureas as a new class of TbLeuRS inhibitors. The R(1) and R(2) groups, reminiscent of the leucyl and adenyl regions of aa-AMP and aa-AMS, were optimized to result in a significant 13-fold increase of inhibitory activity (compound 19, IC50 = 13.7 μM). Aided by ligand-protein docking, the 1,3-substitution at the central phenyl ring was predicted and proved to give significantly improved activity (59, IC50 = 1.1 μM). This work provided a new scaffold for the exploration of novel inhibitors against TbLeuRS, which may become potential therapeutics for the treatment of HAT.
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Affiliation(s)
- Fenglong Zhang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
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5
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Loughlin WA, Jenkins ID, Petersson MJ. Cyclodehydration of N-(Aminoalkyl)benzamides under Mild Conditions with a Hendrickson Reagent Analogue. J Org Chem 2013; 78:7356-61. [DOI: 10.1021/jo401082q] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Wendy A. Loughlin
- School of Biomolecular and Physical Sciences and ‡Eskitis Institute for Drug Discovery, Griffith University, Nathan, QLD 4111,
Australia
| | - Ian D. Jenkins
- School of Biomolecular and Physical Sciences and ‡Eskitis Institute for Drug Discovery, Griffith University, Nathan, QLD 4111,
Australia
| | - Maria J. Petersson
- School of Biomolecular and Physical Sciences and ‡Eskitis Institute for Drug Discovery, Griffith University, Nathan, QLD 4111,
Australia
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6
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Might the observed α2A-adrenoreceptor agonism or antagonism of allyphenyline analogues be ascribed to different molecular conformations? Bioorg Med Chem 2012; 20:2082-90. [DOI: 10.1016/j.bmc.2012.01.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Revised: 01/18/2012] [Accepted: 01/21/2012] [Indexed: 11/21/2022]
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7
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Yamane Y, Liu X, Hamasaki A, Ishida T, Haruta M, Yokoyama T, Tokunaga M. One-pot synthesis of indoles and aniline derivatives from nitroarenes under hydrogenation condition with supported gold nanoparticles. Org Lett 2010; 11:5162-5. [PMID: 19905025 DOI: 10.1021/ol902061j] [Citation(s) in RCA: 143] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
One-pot sequences of hydrogenation/hydroamination to form indoles from (2-nitroaryl)alkynes and hydrogenation/reductive amination to form aniline derivatives from nitroarenes and aldehydes were catalyzed by Au nanoparticles supported on Fe(2)O(3). Nitro group selective hydrogenations and successive reactions were efficiently catalyzed under the conditions.
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Affiliation(s)
- Yoshihiro Yamane
- Department of Chemistry, Graduate School of Science, Kyushu University, Fukuoka 812-8581, Japan
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8
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Singer JM, Wilson MW, Johnson PD, Graham SR, Cooke LW, Roof RL, Boxer PA, Gold LH, Meltzer LT, Janssen A, Roush N, Campbell JE, Su TZ, Hurst SI, Stoner CL, Schwarz JB. Synthesis and SAR of tolylamine 5-HT6 antagonists. Bioorg Med Chem Lett 2009; 19:2409-12. [DOI: 10.1016/j.bmcl.2009.03.077] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2008] [Revised: 03/18/2009] [Accepted: 03/20/2009] [Indexed: 10/21/2022]
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9
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Oshovsky GV, Pinchuk AM. Heterocyclisation of trisubstituted formamidines containing an aryl or hetaryl substituent at the imine nitrogen atom. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc2000v069n10abeh000600] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Fernàndez JC, Solé-Feu L, Fernández-Forner D, de la Figuera N, Forns P, Albericio F. Solid-PhaseN-Electrophilic Amination of 2-Aminopyridines: Preparation of 2-Substituted-[1,2,4]triazolo[1,5-a]pyridine Derivatives. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/qsar.200520170] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Prusis P, Dambrova M, Andrianov V, Rozhkov E, Semenikhina V, Piskunova I, Ongwae E, Lundstedt T, Kalvinsh I, Wikberg JES. Synthesis and quantitative structure-activity relationship of hydrazones of N-amino-N'-hydroxyguanidine as electron acceptors for xanthine oxidase. J Med Chem 2004; 47:3105-10. [PMID: 15163191 DOI: 10.1021/jm031127c] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of new N-hydroxyguanidines were synthesized and tested for electron acceptor activity on bovine milk xanthine oxidase using xanthine as reducing substrate. Manual inspection of the structure-activity data revealed that molecules containing nitro groups ("set A") show a different structure-activity relationship pattern compared to non-nitro compounds ("set B"). Accordingly separate QSAR models were built and validated for the two sets. Substantial differences were found in properties governing acceptor activity for the models, the only common property being sterical access to the imino nitrogen atom of the hydroxyguanidinimines. For set A molecules the presence of a nitro substituent at a certain distance range from the hydroxuguanidino group was most important. In addition, the presence of a nitro group in the ortho position interacting with NH(2) of the hydroxyguanidino group, and the mutual geometry of the phenyl ring, hydroxyguanidine, and imine groups was important for this set. By contrast, for set B molecules the acceptor activity was most influenced by the geometry of methoxy groups and the size and geometry of meta and para substituents of the phenyl ring.
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Affiliation(s)
- Peteris Prusis
- Department of Pharmaceutical Biosciences, Division of Pharmacology, Uppsala University, SE 751 24 Uppsala, Sweden
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Ren S, Wang R, Komatsu K, Bonaz-Krause P, Zyrianov Y, McKenna CE, Csipke C, Tokes ZA, Lien EJ. Synthesis, biological evaluation, and quantitative structure-activity relationship analysis of new Schiff bases of hydroxysemicarbazide as potential antitumor agents. J Med Chem 2002; 45:410-9. [PMID: 11784145 DOI: 10.1021/jm010252q] [Citation(s) in RCA: 191] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Thirty Schiff bases of hydroxysemicarbazide (Ar-CH=NNHCONHOH) have been synthesized and tested against L1210 murine leukemia cells. The IC(50) values were found to be in a range from 2.7 x 10(-6) to 9.4 x 10(-4) M. A total of 17 out of the 30 compounds had higher inhibitory activities than hydroxyurea (an anticancer drug currently used for the treatment of melanoma, leukemia, and ovarian cancer) against L1210 cells. Six compounds with IC(50) values in micromolar range were 11- to 30-fold more potent than hydroxyurea (IC(50) = 8.2 x 10(-5) M). The partition coefficient (log P) and ionization constants (pK(a)) of a model compound [1-(3-trifluoromethylbenzylidene)-4-hydroxysemicarbazide, 1] were measured by the shake-flask method, and the measured log P was used to derive Hansch-Fujita pi constant of -CH=NNHCONHOH. On the basis of the newly derived pi and those of other moieties, the partition coefficients (SlogP) of the other 29 compounds were calculated by the summation of pi values. Quantitative structure-activity relationship (QSAR) analysis showed that, besides the essential pharmacophore (-NHCONHOH), hydrophobicity (SlogP), molecular size/polarizability (calculated molar refractivity), and the presence of an oxygen-containing group at the ortho position (I) were important determinants for the antitumor activities. In conclusion, the results obtained in this study show that several Schiff bases of hydroxysemicarbazide are potent inhibitors of tumor cells and warrant further investigation as cancer chemotherapeutic agents.
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Affiliation(s)
- Shijun Ren
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Southern California, 1985 Zonal Avenue, Los Angeles, CA 90089-9121, USA
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Suzuki T, Tanemura K, Okada C, Arai TLK, Awaji A, Shimizu T, Horaguchi T. Synthesis of 7-acetyloxy-3,7-dimethy1-7,8-dihydro-6H-isochromene-6,8-dione and its analogues. J Heterocycl Chem 2001. [DOI: 10.1002/jhet.5570380625] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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14
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Littke AF, Fu GC. A versatile catalyst for Heck reactions of aryl chlorides and aryl bromides under mild conditions. J Am Chem Soc 2001; 123:6989-7000. [PMID: 11459477 DOI: 10.1021/ja010988c] [Citation(s) in RCA: 547] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the presence of Cy2NMe, Pd/P(t-Bu)3 serves as an exceptionally mild and versatile catalyst for Heck reactions of aryl chlorides and bromides. A sterically and electronically diverse array of aryl bromides, as well as activated aryl chlorides, couple with a range of mono- and disubstituted olefins at room temperature, furnishing the arylated product with high E/Z stereoselection. The corresponding reactions of a broad spectrum of electron-neutral and electron-rich aryl chlorides proceed at elevated temperature, also with high selectivity. In terms of scope and mildness, Pd/P(t-Bu)3/Cy2NMe represents an advance over previously reported catalysts for these Heck coupling processes.
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Affiliation(s)
- A F Littke
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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15
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Pigini M, Bousquet P, Carotti A, Dontenwill M, Giannella M, Moriconi R, Piergentili A, Quaglia W, Tayebati SK, Brasili L. Imidazoline receptors: qualitative structure-activity relationships and discovery of tracizoline and benazoline. Two ligands with high affinity and unprecedented selectivity. Bioorg Med Chem 1997; 5:833-41. [PMID: 9208095 DOI: 10.1016/s0968-0896(97)00009-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The observation that all the attempts to characterize imidazoline (I) receptors have been carried out with non-selective or poorly selective ligands prompted us to undertaken research aimed at developing selective ligand(s). In previous work using, as a starting point, cirazoline I, a potent alpha 1-adrenergic receptor agonist that also binds to I receptors, we showed that removal of the cyclopropyl ring (2) retains high affinity for I2 receptors while reducing alpha 1-adrenergic agonist activity. However, it was felt that this residual, albeit modest, alpha 1-adrenergic agonist activity might diminish the usefulness of compound 2, and we now report on our continuing efforts in this field. Starting from compound 2, we first eliminated the alpha 1-agonist component by isosteric replacement and then, by means of conformational restrictions on compound 7, succeeded in discovering tracizoline (9) and benazoline (12). These two new ligands with high affinity (pKi value 8.74 and 9.07, respectively) and unprecedented selectivity with respect to both alpha 2- (I2/alpha 2 7,762 and 18,621) and alpha 1- (I2/alpha 1 2,344 and 2,691) adrenergic receptors, are valuable tools in the study of I receptor structure and function. In addition, the large number of derivatives studied has allowed us to establish congruent qualitative structure-activity relationships and identify some structural elements governing affinity and selectivity.
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Affiliation(s)
- M Pigini
- Dipartimento di Scienze Chimiche, Università di Camerino, Italy
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Abstract
Opioids have been used for centuries as antidiarrhoeal drugs. In recent years, their mechanism and sites of action in exerting their antidiarrhoeal effect have been studied intensely. Attempts have been made to propose their general mode of action. Whilst there are numerous similarities in their general effects on motility, fluid secretion, and neuroeffector transmission, the differences between species, in some cases, can be remarkable. We highlight and contrast the similarities and differences in the commonly examined species and compare them to humans. Insights into mechanisms of opioid antidiarrhoeal action now also provide some new perspectives of opioid action in the intestine.
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Affiliation(s)
- A De Luca
- Department of Medical Laboratory Science, Royal Melbourne, Institute of Technology University, Victoria, Australia
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2-(Aminobenzyl)-1,2,3,4-tetrahydroisoquinolines: a new class of α2-adrenergic receptor antagonists. Eur J Med Chem 1993. [DOI: 10.1016/0223-5234(93)90130-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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