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Zadorozhnii PV, Kiselev VV, Fedorus AA, Kharchenko AV, Okhtina OV. Synthesis, Spectral Characteristics, and Molecular Structure of N-((N-(p-tolyl)Cyanamido)Methyl)Benzamide. CHEMISTRY AFRICA 2023. [DOI: 10.1007/s42250-022-00522-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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2
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Smith SN, Trujillo C, Connon SJ. Catalytic, asymmetric azidations at carbonyls: achiral and meso-anhydride desymmetrisation affords enantioenriched γ-lactams. Org Biomol Chem 2022; 20:6384-6393. [PMID: 35861618 DOI: 10.1039/d2ob01040b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unprecedented organocatalytic process involving the asymmetric addition of azide to meso-anhydrides has been developed, promoted by novel sulfamide-substituted Cinchona alkaloid-based catalysts. Readily available glutaric anhydrides can be smoothly converted to enantioenriched hemi-acyl azides and from there to either γ-amino acids or γ-lactams.
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Affiliation(s)
- Simon N Smith
- Trinity Biomedical Sciences Institute, School of Chemistry, The University of Dublin, Trinity College, Dublin 2, Ireland.
| | - Cristina Trujillo
- Trinity Biomedical Sciences Institute, School of Chemistry, The University of Dublin, Trinity College, Dublin 2, Ireland.
| | - Stephen J Connon
- Trinity Biomedical Sciences Institute, School of Chemistry, The University of Dublin, Trinity College, Dublin 2, Ireland.
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3
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Chen Z, Yuan W. N-Cyanation of Primary and Secondary Amines with Cyanobenzio-doxolone (CBX) Reagent. Chemistry 2021; 27:14836-14840. [PMID: 34390036 DOI: 10.1002/chem.202102354] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Indexed: 01/11/2023]
Abstract
An efficient electrophilic N-cyanation of amines with a stable and less-toxic cyanobenziodoxole reagent towards the synthesis of cyanamides is disclosed. This synthetically practicable strategy allows the construction of a wide variety of cyanamides under very mild and simple conditions with a broad functional group compatibility, and showcases a huge potential in late-stage modification of complex molecules.
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Affiliation(s)
- Zimin Chen
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica Hubei Key Laboratory of Materials Chemistry and Service Failure School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Weiming Yuan
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica Hubei Key Laboratory of Materials Chemistry and Service Failure School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P. R. China
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4
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N-[(1R)-1-(4-Chlorophenyl)ethyl]-Cyanamide. MOLBANK 2021. [DOI: 10.3390/m1198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The title compound was synthesized by electrophilic cyanation of commercially available (R)-4-chloro-α-methylbenzylamine with cyanogen bromide in diethyl ether, and isolated as a yellow oil in 84% yield. It was characterized by 1H and 13C{1H] NMR, IR, HRMS, and specific rotation measurements.
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Ayres JN, Ling KB, Morrill LC. N-Cyanation of Secondary Amines Using Trichloroacetonitrile. Org Lett 2016; 18:5528-5531. [PMID: 27753288 DOI: 10.1021/acs.orglett.6b02775] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A one-pot N-cyanation of secondary amines has been developed using trichloroacetonitrile as an inexpensive cyano source. A diverse range of cyclic and acyclic secondary amines can be readily transformed into the corresponding cyanamides in good isolated yields, with the method successfully utilized in the final synthetic step of a biologically active rolipram-derived cyanamide. This approach exhibits distinct selectivity when compared to the use of highly toxic cyanogen bromide.
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Affiliation(s)
- James N Ayres
- School of Chemistry, Cardiff University , Main Building, Park Place, Cardiff, CF10 3AT, U.K
| | - Kenneth B Ling
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, U.K
| | - Louis C Morrill
- School of Chemistry, Cardiff University , Main Building, Park Place, Cardiff, CF10 3AT, U.K
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Han Z, Li P, Zhang Z, Chen C, Wang Q, Dong XQ, Zhang X. Highly Enantioselective Synthesis of Chiral Succinimides via Rh/Bisphosphine-Thiourea-Catalyzed Asymmetric Hydrogenation. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01615] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhengyu Han
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Pan Li
- College
of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P.R. China
| | - Zongpeng Zhang
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Caiyou Chen
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Qian Wang
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Xiu-Qin Dong
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Xumu Zhang
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen, Guangdong 518055, P. R. China
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So CM, Kume S, Hayashi T. Rhodium-Catalyzed Asymmetric Hydroarylation of 3-Pyrrolines Giving 3-Arylpyrrolidines: Protonation as a Key Step. J Am Chem Soc 2013; 135:10990-3. [DOI: 10.1021/ja406169s] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Chau Ming So
- Institute of Materials Research and Engineering, A*STAR, 3 Research Link, Singapore
117602, Singapore
| | - Satoshi Kume
- Department
of Chemistry, Graduate
School of Science, Kyoto University, Sakyo,
Kyoto 606-8502, Japan
| | - Tamio Hayashi
- Institute of Materials Research and Engineering, A*STAR, 3 Research Link, Singapore
117602, Singapore
- Department
of Chemistry, Graduate
School of Science, Kyoto University, Sakyo,
Kyoto 606-8502, Japan
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3,
Singapore 117543, Singapore
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Enders D, Göddertz DP, Beceño C, Raabe G. Asymmetric Synthesis of Polyfunctionalized Pyrrolidines via a Thiourea Catalyzed Domino Mannich/Aza-Michael Reaction. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000658] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Deaton DN, Hassell AM, McFadyen RB, Miller AB, Miller LR, Shewchuk LM, Tavares FX, Willard DH, Wright LL. Novel and potent cyclic cyanamide-based cathepsin K inhibitors. Bioorg Med Chem Lett 2005; 15:1815-9. [PMID: 15780613 DOI: 10.1016/j.bmcl.2005.02.033] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2005] [Revised: 02/09/2005] [Accepted: 02/11/2005] [Indexed: 10/25/2022]
Abstract
Starting from a PDE IV inhibitor hit derived from high throughput screening of the compound collection, a key pyrrolidine cyanamide pharmacophore was identified. Modifications of the pyrrolidine ring produced enhancements in cathepsin K inhibition. An X-ray co-crystal structure of a cyanamide with cathepsin K confirmed the mode of inhibition.
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Affiliation(s)
- David N Deaton
- Department of Medicinal Chemistry, GlaxoSmithKline, Research Triangle Park, NC 27709, USA.
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McGarry DG, Regan JR, Volz FA, Hulme C, Moriarty KJ, Djuric SW, Souness JE, Miller BE, Travis JJ, Sweeney DM. Benzofuran based PDE4 inhibitors. Bioorg Med Chem 1999; 7:1131-9. [PMID: 10428384 DOI: 10.1016/s0968-0896(99)00038-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Replacement of the 3,4-dialkoxyphenyl substructure common to a number of PDE4 inhibitors with a 2-alkyl-7-methoxybenzofuran unit is described. This substitution can result in either enhancement or substantial reductions in PDE4 inhibitory activity depending on the system to which it is applied. An in vitro SAR study of a potent series of 4-(2-heteroaryl-ethyl)-benzoiurans 26 is also presented.
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Affiliation(s)
- D G McGarry
- Department of Medicinal Chemistry, Rhône Poulenc Rorer, Collegeville, PA 19426, USA
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He W, Huang FC, Hanney B, Souness J, Miller B, Liang G, Mason J, Djuric S. Novel cyclic compounds as potent phosphodiesterase 4 inhibitors. J Med Chem 1998; 41:4216-23. [PMID: 9784096 DOI: 10.1021/jm970575f] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis and biological activity of a novel series of 2, 2-disubstituted indan-1,3-dione-based PDE4 inhibitors are described. This structurally unique class of PDE4 inhibitors is markedly different from the known PDE4 inhibitors such as RP 73401 (2) and CDP 840 (3). Structure-activity relationship (SAR) studies led to the identification of inhibitors with nanomolar potency and oral activity in a murine endotoxemia model for TNF-alpha inhibition. Unlike other classical PDE4 inhibitors, several analogues were found to be nonemetic in a canine emesis model at intravenous doses of up to 3 mg/kg.
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MESH Headings
- 3',5'-Cyclic-AMP Phosphodiesterases/metabolism
- Animals
- Anti-Inflammatory Agents, Non-Steroidal/chemical synthesis
- Anti-Inflammatory Agents, Non-Steroidal/chemistry
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Anti-Inflammatory Agents, Non-Steroidal/toxicity
- Benzamides/chemical synthesis
- Benzamides/chemistry
- Benzamides/pharmacology
- Benzamides/toxicity
- Brain/metabolism
- Cyclic Nucleotide Phosphodiesterases, Type 4
- Dogs
- Endotoxemia/metabolism
- Female
- Guinea Pigs
- In Vitro Techniques
- Lipopolysaccharides/toxicity
- Macrophages, Peritoneal/drug effects
- Macrophages, Peritoneal/enzymology
- Male
- Mice
- Mice, Inbred BALB C
- Models, Molecular
- Phosphodiesterase Inhibitors/chemical synthesis
- Phosphodiesterase Inhibitors/chemistry
- Phosphodiesterase Inhibitors/pharmacology
- Phosphodiesterase Inhibitors/toxicity
- Pyridines/chemical synthesis
- Pyridines/chemistry
- Pyridines/pharmacology
- Pyridines/toxicity
- Structure-Activity Relationship
- Tumor Necrosis Factor-alpha/antagonists & inhibitors
- Vomiting/chemically induced
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Affiliation(s)
- W He
- Department of Medicinal Chemistry, SW 8 Rhône-Poulenc Rorer Central Research, 500 Arcola Road, Collegeville, Pennsylvania 19426, USA
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Iwasaki T, Kondo K, Kuroda T, Moritani Y, Yamagata S, Sugiura M, Kikkawa H, Kaminuma O, Ikezawa K. Novel selective PDE IV inhibitors as antiasthmatic agents. Synthesis and biological activities of a series of 1-aryl-2,3-bis(hydroxymethyl)naphthalene lignans. J Med Chem 1996; 39:2696-704. [PMID: 8709099 DOI: 10.1021/jm9509096] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A series of 1-aryl-2,3-bis(hydroxymethyl)naphthalene lignans have been synthesized and evaluated for their ability to selectively inhibit PDE IV isolated from guinea pig. Replacement of the 1-phenyl ring by a pyridone ring led to marked improvement of their selectivity for PDE IV over PDE III. The compounds that were most potent and selective involved those bearing an N-alkylpyridone ring at C-1. These compounds also showed potent antispasmogenic activity without causing significant changes in heart rate in the guinea pig. The most potent compound was 6,7-diethoxy-2, 3-bis(hydroxymethyl)-1-[1-(2-methoxyethyl)-2-oxo-pyrid-4-yl]nap hth alene (17f), ED50 values of histamine-induced and antigen-induced bronchoconstriction in the guinea pig being 0.08 and 2.3 mg/kg iv, respectively. This compound was chosen as a candidate for further pharmacological evaluation.
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Affiliation(s)
- T Iwasaki
- Lead Optimization Research Laboratory, Tanàbe Seiyaku Company, Ltd., Osaka, Japan
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15
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Chapter 8. Chronic Pulmonary Inflammation and Other Therapeutic Applications of PDE IV Inhibitors. ANNUAL REPORTS IN MEDICINAL CHEMISTRY 1996. [DOI: 10.1016/s0065-7743(08)60447-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
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16
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Phosphodiesterase type IV (PDE IV) inhibition. Synthesis and evaluation of a series of 1,3,4-trisubstituted pyrrolidines. Bioorg Med Chem Lett 1995. [DOI: 10.1016/0960-894x(95)00336-r] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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