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Zou LH, Li YC, Li PG, Zhou J, Wu Z. Solvent-Controlled α-Monobromination, α,α-Dibromination or Imidation of 1,3-Diketones with N
-Bromosuccinimide. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800994] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Liang-Hua Zou
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology; Ministry of Education; School of Biotechnology; School of Pharmaceutical Sciences; Jiangnan University; Lihu Avenue 1800 214122 Wuxi P.R. China
| | - Yan-Chun Li
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology; Ministry of Education; School of Biotechnology; School of Pharmaceutical Sciences; Jiangnan University; Lihu Avenue 1800 214122 Wuxi P.R. China
| | - Ping-Gui Li
- State Key Laboratory of Coordination Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; chool of Chemistry and Chemical Engineering; Nanjing University; Xianlin Avenue 163 210093 Nanjing P. R. China
| | - Jing Zhou
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology; Ministry of Education; School of Biotechnology; School of Pharmaceutical Sciences; Jiangnan University; Lihu Avenue 1800 214122 Wuxi P.R. China
| | - Zhimeng Wu
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology; Ministry of Education; School of Biotechnology; School of Pharmaceutical Sciences; Jiangnan University; Lihu Avenue 1800 214122 Wuxi P.R. China
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2
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Shikhaliev K, Sabynin A, Sekirin V, Krysin M, Zubkov F, Yankina K. A New Synthetic Route to Polyhydrogenated Pyrrolo[3,4-b]pyrroles by the Domino Reaction of 3-Bromopyrrole-2,5-Diones with Aminocrotonic Acid Esters. Molecules 2017; 22:E2035. [PMID: 29165400 PMCID: PMC6150208 DOI: 10.3390/molecules22112035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 11/16/2017] [Accepted: 11/20/2017] [Indexed: 11/20/2022] Open
Abstract
A new synthetic approach to polyfunctional hexahydropyrrolo[3,4-b]pyrroles was developed based on cyclization of N-arylbromomaleimides with aminocrotonic acid esters. A highly chemo- and stereoselective reaction is a Hantzsch-type domino process, involving the steps of initial nucleophilic C-addition or substitution and subsequent intramolecular nucleophilic addition without recyclyzation of imide cycle.
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Affiliation(s)
- Khidmet Shikhaliev
- Department of Organic Chemistry, Faculty of Chemistry, Voronezh State University, 1 Universitetskaya sq., Voronezh 394018, Russia.
| | - Artem Sabynin
- Department of Organic Chemistry, Faculty of Chemistry, Voronezh State University, 1 Universitetskaya sq., Voronezh 394018, Russia.
| | - Valeri Sekirin
- Department of Organic Chemistry, Faculty of Chemistry, Voronezh State University, 1 Universitetskaya sq., Voronezh 394018, Russia.
| | - Michael Krysin
- Department of Organic Chemistry, Faculty of Chemistry, Voronezh State University, 1 Universitetskaya sq., Voronezh 394018, Russia.
| | - Fedor Zubkov
- Department of Organic Chemistry, Faculty of Physics and Mathematics and Natural Sciences, RUDN University, 6 Miklukho-Maklaya St., Moscow 117198, Russia.
| | - Kristina Yankina
- Department of Organic Chemistry, Faculty of Physics and Mathematics and Natural Sciences, RUDN University, 6 Miklukho-Maklaya St., Moscow 117198, Russia.
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3
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St-Cyr DJ, García-Ramos Y, Doan ND, Lubell WD. Aminolactam, N-Aminoimidazolone, and N-Aminoimdazolidinone Peptide Mimics. TOPICS IN HETEROCYCLIC CHEMISTRY 2017. [DOI: 10.1007/7081_2017_204] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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4
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Frost JM, DeGoey DA, Shi L, Gum RJ, Fricano MM, Lundgaard GL, El-Kouhen OF, Hsieh GC, Neelands T, Matulenko MA, Daanen JF, Pai M, Ghoreishi-Haack N, Zhan C, Zhang XF, Kort ME. Substituted Indazoles as Nav1.7 Blockers for the Treatment of Pain. J Med Chem 2016; 59:3373-91. [DOI: 10.1021/acs.jmedchem.6b00063] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Jennifer M. Frost
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
| | - David A. DeGoey
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
| | - Lei Shi
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
| | - Rebecca J. Gum
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
| | - Meagan M. Fricano
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
| | - Greta L. Lundgaard
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
| | - Odile F. El-Kouhen
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
| | - Gin C. Hsieh
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
| | - Torben Neelands
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
| | - Mark A. Matulenko
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
| | - Jerome F. Daanen
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
| | - Madhavi Pai
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
| | | | - Cenchen Zhan
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
| | - Xu-Feng Zhang
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
| | - Michael E. Kort
- Research
and Development, AbbVie, 1 North Waukegan Road, North
Chicago, Illinois 60064, United States
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5
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Tan H, Li M, Liang F. Direct α-C-H amination of β-dicarbonyl compounds using DBU-activated N-haloimides as nitrogen sources. RSC Adv 2014. [DOI: 10.1039/c4ra07118b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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6
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CARLEVARO CMANUEL, MARTINS-DA-SILVA JOÃOHERMÍNIO, SAVINO WILSON, CAFFARENA ERNESTORAÚL. PLAUSIBLE BINDING MODE OF THE ACTIVE α4β1 ANTAGONIST, MK-0617, DETERMINED BY DOCKING AND FREE ENERGY CALCULATIONS. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2013. [DOI: 10.1142/s0219633612501088] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In the last years, the development of small molecule antagonists of VLA-4 for the treatment of diseases, where cell trafficking and activation are important, has increased considerably. Among them, the MK-0617 ligand has proven to be a highly potent and orally active α4β1 antagonist. However, the binding mode of this ligand in the integrin binding site remains unknown. Herein we report a thermodynamic analysis of the interaction between MK-0617 (and one of its isomers) and the VLA-4 protein using molecular docking and the free energy perturbation calculations, based on a comparative model of the α4β1 receptor. Initial complex coordinates were taken from molecular docking assays and submitted to alchemical transformations. Free energy of binding ΔΔG values, derived from experimental IC50 values, were taken as a parameter for determining the most likely binding mode. In addition, molecular dynamics simulations of these ligands within the α4β1 binding site were carried out to elucidate the binding energy profile and identify the most significant residues. Our results indicate that MK-0617 fits within the binding site in a stretched conformation, pointing the carboxylate group towards the MIDAS ion. We observe that, despite the fact that the main contribution to the energetic binding process is due to the electrostatic ion contribution, the nonpolar contribution is not negligible. Additionally, a network of hydrogen bonds participate in stabilizing the ligand-receptor interaction.
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Affiliation(s)
- C. MANUEL CARLEVARO
- Instituto de Física de Líquidos y Sistemas Biológicos (CONICET-UNLP), 59 No 789, La Plata, Buenos Aires 1900, Argentina
| | - JOÃO HERMÍNIO MARTINS-DA-SILVA
- Programa de Computação Científica (PROCC), Fundação Oswaldo Cruz, Ave. Brasil 4365 Manguinhos, 21040-900, Rio de Janeiro, Brazil
| | - WILSON SAVINO
- Laboratório de Pesquisas sobre o Timo, Fundação Oswaldo Cruz, Ave. Brasil 4365 Manguinhos, 21040-900, Rio de Janeiro, Brazil
| | - ERNESTO RAÚL CAFFARENA
- Programa de Computação Científica (PROCC), Fundação Oswaldo Cruz, Ave. Brasil 4365 Manguinhos, 21040-900, Rio de Janeiro, Brazil
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7
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Xu YZ, Konradi AW, Bard F, Dappen M, Dofiles L, Dreyer M, Gallager I, Garrido C, Krimm M, Liao Z, Messersmith E, Mutter L, Pleiss MA, Samant B, Semko CM, Smith J, Stappenbeck F, Stupi B, Vandervert C, Welch B, Wipke B, Yednock T. Arylsulfonamide pyrimidines as VLA-4 antagonists. Bioorg Med Chem Lett 2013; 23:3070-4. [PMID: 23562062 DOI: 10.1016/j.bmcl.2013.03.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 02/21/2013] [Accepted: 03/04/2013] [Indexed: 11/25/2022]
Abstract
A series of (S)-2-(2-(diethylamino)-5-(N-alkyl-N-sulfonamido)pyrimidin-4-ylamino)-3-(4-(carbamoyloxy)phenyl)propanoic acid is discovered as orally available VLA-4 antagonists. Representative compounds 11b and 11p showed efficacy in multiple in vivo animal models. The in vitro selectivity of 11p is also described.
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Affiliation(s)
- Ying-Zi Xu
- Department of Chemical Sciences, Elan Pharmaceuticals, Inc., 180 Oyster Point Blvd., South San Francisco, CA 94080, USA.
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Yu J, Liu SS, Cui J, Hou XS, Zhang C. A mild and efficient direct α-amination of β-dicarbonyl compounds using iodosobenzene and p-toluenesulfonamide catalyzed by perchlorate zinc hexahydrate. Org Lett 2012; 14:832-5. [PMID: 22260345 DOI: 10.1021/ol203358f] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A direct α-amination of β-dicarbonyl compounds has been achieved by using iodosobenzene (PhIO) as an oxidant and p-toluenesulfonamide (TsNH(2)) as an aminating reagent in the presence of a catalytic amount of perchlorate zinc hexahydrate. The present amination reaction proceeds quickly at rt (<30 min needed for most tested substrates) to provide the corresponding α-N-tosylamido β-dicarbonyl compounds in high to excellent yields.
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Affiliation(s)
- Jun Yu
- State Key Laboratory of Elemento-Organic Chemistry, The Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, PR of China
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9
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Modeling the molecular basis for α4β1 integrin antagonism. Bioorg Med Chem 2011; 19:5903-11. [PMID: 21889349 DOI: 10.1016/j.bmc.2011.08.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Revised: 07/29/2011] [Accepted: 08/05/2011] [Indexed: 11/23/2022]
Abstract
We report a 3D QSAR study of almost 300 structurally diverse small molecule antagonists of the integrin α4β1 whose biological activity spans six orders of magnitude. The alignment of the molecules was based on the conformation of a structurally related ligand bound to the αIIBβ3 and αvβ3 integrins in X-ray crystallographic studies. The molecular field method, CoMSIA, was used to generate the 3D QSAR models. The resulting models showed that the lipophilic properties were the most important, with hydrogen bond donor and steric properties less relevant. The models were highly significant (r(2)=0.89, q2(LOO)=0.67, r(2) (test set)=0.76), and could make robust predictions of the data (SEE=0.46, SEP=0.78, SEP (test set)=0.66). We predicted the antagonist activities of a further ten compounds with useful accuracy. The model appears capable of predicting α4β1 integrin antagonist activity to within a factor of five for compounds within its domain of applicability. The implications for design of improved integrin antagonists will be discussed.
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Attanasi OA, Bianchi L, De Crescentini L, Favi G, Mantellini F. Easy One-Pot Synthesis of Fused Heterocycles from 1,2-Diaza-1,3-dienes. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100340] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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