1
|
Stefaniak-Napieralska M, Walczyński K, Iwan M, Korga-Plewko A, Szałaj N, Więckowska A, Staszewski M. Preliminary studies of 1,5-benzoxazepine derivatives as potential histamine H 3 receptor antagonists. Future Med Chem 2024; 16:197-204. [PMID: 38189171 DOI: 10.4155/fmc-2023-0277] [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: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/09/2024] Open
Abstract
Aims: Our research aimed to evaluate how the rigidification of the characteristic 3-aminopropyloxy linker by incorporating it into 1,5-benzoxazepines affects the potency of histamine H3 receptor (H3R) antagonists/inverse agonists. This research constitutes a starting point for the full characterization of the pharmacological properties of this group of compounds. Materials & methods: Several 1,5-benzoxazepine derivatives were synthesized and pharmacologically tested as potential H3R antagonist/inverse agonists. In a addition, the effect of the derivatives on acetylcholinesterase and butyrylcholinesterase inhibition and cytotoxicity were tested. Results: The studies indicated 1,5-benzoxazepine containing three carbon side chains as a compound for further modification. Conclusion: Further optimization of the lead structure is necessary, which will favorably affect biological targets.
Collapse
Affiliation(s)
| | - Krzysztof Walczyński
- Department of Synthesis & Technology of Drugs, Medical University of Lodz, Muszyńskiego 1, 90-151 Łódź, Poland
| | - Magdalena Iwan
- Department of Toxicology, Medical University of Lublin, Chodźki 8, 20-093 Lublin, Poland
| | - Agnieszka Korga-Plewko
- Independent Medical Biology Unit, Medical University of Lublin, Jaczewskiego 8b, 20-090 Lublin, Poland
| | - Natalia Szałaj
- Department of Physicochemical Drug Analysis, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Anna Więckowska
- Department of Physicochemical Drug Analysis, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Marek Staszewski
- Department of Synthesis & Technology of Drugs, Medical University of Lodz, Muszyńskiego 1, 90-151 Łódź, Poland
| |
Collapse
|
2
|
Khan A, Sarwar MG, Ali S. Reactivity and Stability of (Hetero)Benzylic Alkenes via the Wittig Olefination Reaction. Molecules 2024; 29:501. [PMID: 38276579 PMCID: PMC10819551 DOI: 10.3390/molecules29020501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/07/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
Wittig olefination at hetero-benzylic positions for electron-deficient and electron-rich heterocycles has been studied. The electronic effects of some commonly used protective groups associated with the N-heterocycles were also investigated for alkenes obtained in the context of the widely employed Wittig olefination reaction. It was observed that hetero-benzylic positions of the pyridine, thiophene and furan derivatives were stable after Wittig olefination. Similarly, electron-withdrawing groups (EWGs) attached to N-heterocycles (indole and pyrrole derivatives) directly enhanced the stability of the benzylic position during and after Wittig olefination, resulting in the formation of stable alkenes. Conversely, electron-donating group (EDG)-associated N-heterocycles boosted the reactivity of benzylic alkene, leading to lower yields or decomposition of the olefination products.
Collapse
Affiliation(s)
- Ajmir Khan
- School of Packaging, Michigan State University, 448 Wilson Road, East Lansing, MI 48824, USA
| | | | - Sher Ali
- Department of Food Engineering, Faculty of Animal Science and Food Engineering (FZEA), University of São Paulo (USP), Pirassununga 13635-900, SP, Brazil;
| |
Collapse
|
3
|
Chatterjee I, Ali K, Panda G. A Synthetic Overview of Benzoxazines and Benzoxazepines as Anticancer Agents. ChemMedChem 2023; 18:e202200617. [PMID: 36598081 DOI: 10.1002/cmdc.202200617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/27/2022] [Accepted: 12/30/2022] [Indexed: 01/05/2023]
Abstract
Benzoxazines and benzoxazepines are nitrogen and oxygen-containing six and seven-membered benzo-fused heterocyclic scaffolds, respectively. Benzoxazepines and benzoxazines are well-known pharmacophores in pharmaceutical chemistry, which are of significant interest and have been extensively studied because of their promising activity against various diseases including their wide range of anticancer activity. Several reports are known for synthesizing benzoxazine and benzoxazepine-based compounds in the literature. Herein this review provides a critical analysis of synthetic strategies towards benzoxazines and benzoxazepines along with various ranges of anticancer activities based on these molecules that have been reported from 2010 onwards. This review also focuses on the structure-activity relationship of the benzoxazine and benzoxazepine scaffolds containing bioactive compounds and describes how the structural modification affects their anticancer activity.
Collapse
Affiliation(s)
- Indranil Chatterjee
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute Sector-10, Jankipuram Extension, Lucknow, 226031, India
| | - Kasim Ali
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute Sector-10, Jankipuram Extension, Lucknow, 226031, India.,AcSIR-Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Gautam Panda
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute Sector-10, Jankipuram Extension, Lucknow, 226031, India.,AcSIR-Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| |
Collapse
|
4
|
Ronse U, Magdalenić K, Van Camp J, D'hooghe M. Synthesis of the 1,5-Benzothiazepane Scaffold - Established Methods and New Developments. ChemistryOpen 2023; 12:e202200262. [PMID: 36807726 PMCID: PMC9942483 DOI: 10.1002/open.202200262] [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: 12/09/2022] [Revised: 02/04/2023] [Indexed: 02/23/2023] Open
Abstract
The 1,5-benzothiazepane structure is an important heterocyclic moiety present in a variety of commercial drugs and pharmaceuticals. This privileged scaffold exhibits a diversity of biological activities, including antimicrobial, antibacterial, anti-epileptic, anti-HIV, antidepressant, antithrombotic and anticancer properties. Its important pharmacological potential renders research into the development of new and efficient synthetic methods of high relevance. In the first part of this review, an overview of different synthetic approaches toward 1,5-benzothiazepane and its derivatives is provided, ranging from established protocols to recent (enantioselective) methods that promote sustainability. In the second part, several structural characteristics influencing biological activity are briefly explored, providing a few insights into the structure-activity relationships of these compounds.
Collapse
Affiliation(s)
- Ulrike Ronse
- SynBioC Research GroupDepartment of Green Chemistry and TechnologyFaculty of Bioscience EngineeringGhent UniversityCoupure Links 653Ghent9000Belgium
| | - Katarina Magdalenić
- SynBioC Research GroupDepartment of Green Chemistry and TechnologyFaculty of Bioscience EngineeringGhent UniversityCoupure Links 653Ghent9000Belgium
| | - John Van Camp
- Department of Food Technology, Safety and HealthGhent UniversityCoupure Links 653Ghent9000Belgium
| | - Matthias D'hooghe
- SynBioC Research GroupDepartment of Green Chemistry and TechnologyFaculty of Bioscience EngineeringGhent UniversityCoupure Links 653Ghent9000Belgium
| |
Collapse
|
5
|
Qu B, Lee J, Wu L, Saha AK, Li G, Xu Y, Tan Z, Brazzillo J, Haddad N, Pennino S, Rodriguez S, Lorenz JC, Frutos R, Sidhu KPS, Wang XJ, Zhang Y, Senanayake CH, Song JJ. Scalable Process of Spiro(cyclopropane)oxazepane Pyridine Carboxylic Acid through Kulinkovich, Mitsunobu, and Pd-Catalyzed Intramolecular C–N Coupling. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bo Qu
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Jaehee Lee
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Lifen Wu
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Anjan K. Saha
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Guisheng Li
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Yibo Xu
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Zhulin Tan
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Jason Brazzillo
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Nizar Haddad
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Scott Pennino
- Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Sonia Rodriguez
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Jon C. Lorenz
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Rogelio Frutos
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Kanwar P. S. Sidhu
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Xiao-Jun Wang
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Yongda Zhang
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Chris H. Senanayake
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| | - Jinhua J. Song
- Chemical Development US, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, United States
| |
Collapse
|
6
|
Fan W, Xiang S, Li Y, Zhang W, Guo S, Huang D. Iodine-Mediated Pyridine Ring Expansion for the Construction of Azepines. Org Lett 2022; 24:2075-2080. [PMID: 35285653 DOI: 10.1021/acs.orglett.2c00130] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A synthesis of azepines by the expansion of pyridine rings promoted by iodine in air is reported. The scope of the method is demonstrated with 27 examples. Two iodinations are involved in the reaction, in which the second iodination leads to the opening of the six-membered ring.
Collapse
Affiliation(s)
- Weibin Fan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shiqun Xiang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Yinghua Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Wei Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Shiwei Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Deguang Huang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| |
Collapse
|
7
|
Tokuyama H, Wakahara Y, Noro T, Sakata J, Ueda H. Construction of Tetrahydroquinolines with Spirocyclic Structures at the 4-Position. HETEROCYCLES 2022. [DOI: 10.3987/com-22-s(r)16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
8
|
Xiao G, Xie C, Guo Q, Zi G, Hou G, Huang Y. Highly enantioselective Ni-catalyzed asymmetric hydrogenation of β,β-disubstituted acrylic acids. Org Chem Front 2022. [DOI: 10.1039/d2qo00652a] [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
A highly enantioselective Ni-catalyzed hydrogenation of β,β-disubstituted acrylic acids was first realized using Ph-BPE, providing straightforward access to chiral carboxylic acids in high yields with excellent enantioselectivities, up to 99% ee.
Collapse
Affiliation(s)
- Guiying Xiao
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Chaochao Xie
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Qianling Guo
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guofu Zi
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guohua Hou
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Yuping Huang
- Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China
| |
Collapse
|
9
|
Sakata J. [Synthetic Studies on Complex Natural Products Based on Development of a Novel Synthetic Method for Heteroaromatic Skeleton]. YAKUGAKU ZASSHI 2022; 142:91-100. [PMID: 35110456 DOI: 10.1248/yakushi.21-00199] [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] [Indexed: 01/06/2023]
Abstract
Among my recent work on the syntheses of complex natural products based on the development of a novel synthetic method for the heteroaromatic skeleton, this article primarily deals with the total syntheses of (+)-CC-1065, isobatzeline A/B, and batzeline A. These syntheses were accomplished via a novel indole synthesis utilizing a ring expansion reaction of benzocyclobutenone oxime sulfonate as the key step. The 1,2-dihydro-3H-pyrrolo[3,2-e]indole segments of (+)-CC-1065 were rapidly constructed via a two-directional double-ring expansion strategy. Highly substituted pyrrolidine-fused common 5-chloro-2-methylthioindoles of isobatzeline A/B and batzeline A were constructed using a ring expansion reaction of benzocyclobutenone oxime sulfonate with NaSMe and a benzyne-mediated cyclization/functionalization reaction.
Collapse
Affiliation(s)
- Juri Sakata
- Graduate School of Pharmaceutical Sciences, Tohoku University
| |
Collapse
|
10
|
Stefaniak M, Olszewska B. 1,5-Benzoxazepines as a unique and potent scaffold for activity drugs: A review. Arch Pharm (Weinheim) 2021; 354:e2100224. [PMID: 34368985 DOI: 10.1002/ardp.202100224] [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: 06/18/2021] [Revised: 07/15/2021] [Accepted: 07/17/2021] [Indexed: 11/09/2022]
Abstract
Benzoxazepines constitute a huge number of organic compounds widely described in the literature. Many of them are distinguished by their biological properties. Among them, our attention was drawn to 1,5-benzoxazepine derivatives due to their interesting pharmacological properties. As is reported in the literature, these compounds are not only good building blocks in organic synthesis but also have interesting biological and pharmacological properties. This article is the first review publication to describe the synthesis methods and unique properties of 1,5-benzoxazepines. Literature reports widely describe the biological properties of 1,5-benzoxazepine, like anticancer, antibacterial, or antifungal activities. 1,5-Benzoxazepine derivatives can also interact with G-protein-coupled receptors and could be incorporated into new potential drugs, among others, in treating neuronal disorders like Alzheimer's and Parkinson's disease.
Collapse
Affiliation(s)
- Monika Stefaniak
- Department of Synthesis and Technology of Drugs, Medical University of Lodz, Łódź, Poland
| | - Beata Olszewska
- Department of Synthesis and Technology of Drugs, Medical University of Lodz, Łódź, Poland
| |
Collapse
|
11
|
Zhou W, Tian X, Zhen Y, Wang A, He M, Sun S. Efficiently Constructing Tetrahydroquinolines through Cascade Radical Additions and Cyclizations under the Catalysis of Cu
I. ChemistrySelect 2021. [DOI: 10.1002/slct.202101928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Weiyou Zhou
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Changzhou University Changzhou 213164 P. R. China) (W. Zhou
| | - Xiaoting Tian
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Changzhou University Changzhou 213164 P. R. China) (W. Zhou
| | - Yingxing Zhen
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Changzhou University Changzhou 213164 P. R. China) (W. Zhou
| | - Anwei Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Changzhou University Changzhou 213164 P. R. China) (W. Zhou
| | - Mingyang He
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Changzhou University Changzhou 213164 P. R. China) (W. Zhou
| | - Shixin Sun
- School of Chemical & Enviromental Engineering Yancheng Teachers University Yancheng 224002 P. R. China
| |
Collapse
|
12
|
Design, synthesis and biological evaluation of brain penetrant benzazepine-based histone deacetylase 6 inhibitors for alleviating stroke-induced brain infarction. Eur J Med Chem 2021; 218:113383. [PMID: 33799069 DOI: 10.1016/j.ejmech.2021.113383] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/13/2021] [Accepted: 03/08/2021] [Indexed: 12/20/2022]
Abstract
Histone deacetylase 6 (HDAC6) has become a promising therapeutic target for central nervous system diseases due to its more complex protein structure and biological functions. However, low brain penetration of reported HDAC6 inhibitors limits its clinical application in neurological disorders. Therefore, the benzazepine, a brain-penetrant rigid fragment, was utilized to design a series of selective HDAC6 inhibitors to improve brain bioavailability. Various synthetic strategies were applied to assemble the tetrahydro-benzazepine ring, and 22 compounds were synthesized. Among them, compound 5 showed low nanomolar potency and strong isozyme selectivity for the inhibition of HDAC6 (IC50 = 1.8 nM, 141-fold selectivity over HDAC1) with efficient binding patterns like coordination with the zinc ion and π-π stacking effect. Western blot results showed it could efficiently transport into SH-SY5Y cells and selectively enhance the acetylation level of α-tubulin with a moderate effect on Histone H3. Notably, pharmacokinetic studies demonstrated that compound 5 (brain/plasma ratio of 2.30) had an excellent ability to penetrate the blood-brain barrier of C57 mice. In male rats with transient middle cerebral artery occlusion (MCAO), compound 5 significantly reduced the cerebral infarction from 21.22% to 11.47% and alleviated neurobehavioral deficits in post-ischemic treatment, which provided a strong rationale for pursuing HDAC6-based therapies for ischemic stroke.
Collapse
|
13
|
Fang H, Wang G, Oestreich M. Mild reductive rearrangement of oximes and oxime ethers to secondary amines with hydrosilanes catalyzed by B(C 6F 5) 3. Org Chem Front 2021. [DOI: 10.1039/d1qo00251a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Oximes, its ether derivatives and the corresponding hydroxylamines rearrange to secondary amines when reacted with PhSiH3 and B(C6F5)3 as catalyst. Computations suggest a reduction–rearrangement to be slightly favored over a Beckmann-type sequence.
Collapse
Affiliation(s)
- Huaquan Fang
- Institut für Chemie
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Guoqiang Wang
- Institut für Chemie
- Technische Universität Berlin
- 10623 Berlin
- Germany
- Institute of Theoretical and Computational Chemistry
| | - Martin Oestreich
- Institut für Chemie
- Technische Universität Berlin
- 10623 Berlin
- Germany
| |
Collapse
|
14
|
Szalóki Vargáné D, Tóth L, Buglyó B, Kiss-Szikszai A, Mándi A, Mátyus P, Antus S, Chen Y, Li D, Tao L, Zhang H, Kurtán T. [1,5]-Hydride Shift-Cyclization versus C(sp 2)-H Functionalization in the Knoevenagel-Cyclization Domino Reactions of 1,4- and 1,5-Benzoxazepines. Molecules 2020; 25:E1265. [PMID: 32168821 PMCID: PMC7144003 DOI: 10.3390/molecules25061265] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/05/2020] [Accepted: 03/07/2020] [Indexed: 02/07/2023] Open
Abstract
Domino cyclization reactions of N-aryl-1,4- and 1,5-benzoxazepine derivatives involving [1,5]-hydride shift or C(sp2)-H functionalization were investigated. Neuroprotective and acetylcholinesterase activities of the products were studied. Domino Knoevenagel-[1,5]-hydride shift-cyclization reaction of N-aryl-1,4-benzoxazepine derivatives with 1,3-dicarbonyl reagents having active methylene group afforded the 1,2,8,9-tetrahydro-7bH-quinolino [1,2-d][1,4]benzoxazepine scaffold with different substitution pattern. The C(sp3)-H activation step of the tertiary amine moiety occurred with complete regioselectivity and the 6-endo cyclization took place in a complete diastereoselective manner. In two cases, the enantiomers of the chiral condensed new 1,4-benzoxazepine systems were separated by chiral HPLC, HPLC-ECD spectra were recorded, and absolute configurations were determined by time-dependent density functional theory- electronic circular dichroism (TDDFT-ECD) calculations. In contrast, the analogue reaction of the regioisomeric N-aryl-1,5-benzoxazepine derivative did not follow the above mechanism but instead the Knoevenagel intermediate reacted in an SEAr reaction [C(sp2)-H functionalization] resulting in a condensed acridane derivative. The AChE inhibitory assays of the new derivatives revealed that the acridane derivative had a 6.98 μM IC50 value.
Collapse
Affiliation(s)
- Dóra Szalóki Vargáné
- Department of Organic Chemistry, University of Debrecen, Debrecen, P. O. Box 400, Debrecen 4002, Hungary; (D.S.V.); (L.T.); (B.B.); (A.K.-S.); (A.M.)
- Doctoral School of Chemistry, University of Debrecen, Egyetem tér 1, Debrecen 4032, Hungary
| | - László Tóth
- Department of Organic Chemistry, University of Debrecen, Debrecen, P. O. Box 400, Debrecen 4002, Hungary; (D.S.V.); (L.T.); (B.B.); (A.K.-S.); (A.M.)
- Department of Organic Chemistry, Semmelweis University, Budapest 1094, Hungary
| | - Balázs Buglyó
- Department of Organic Chemistry, University of Debrecen, Debrecen, P. O. Box 400, Debrecen 4002, Hungary; (D.S.V.); (L.T.); (B.B.); (A.K.-S.); (A.M.)
| | - Attila Kiss-Szikszai
- Department of Organic Chemistry, University of Debrecen, Debrecen, P. O. Box 400, Debrecen 4002, Hungary; (D.S.V.); (L.T.); (B.B.); (A.K.-S.); (A.M.)
| | - Attila Mándi
- Department of Organic Chemistry, University of Debrecen, Debrecen, P. O. Box 400, Debrecen 4002, Hungary; (D.S.V.); (L.T.); (B.B.); (A.K.-S.); (A.M.)
| | - Péter Mátyus
- Institute of Digital Health Sciences, Faculty of Health and Public Services, Semmelweis University, Ferenc tér 15, Budapest 1094, Hungary;
| | - Sándor Antus
- Department of Organic Chemistry, University of Debrecen, Debrecen, P. O. Box 400, Debrecen 4002, Hungary; (D.S.V.); (L.T.); (B.B.); (A.K.-S.); (A.M.)
| | - Yinghan Chen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (Y.C.); (D.L.)
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (Y.C.); (D.L.)
| | - Lingxue Tao
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhang Jiang Hi-Tech Park, Shanghai 201203, China; (L.T.); (H.Z.)
| | - Haiyan Zhang
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhang Jiang Hi-Tech Park, Shanghai 201203, China; (L.T.); (H.Z.)
| | - Tibor Kurtán
- Department of Organic Chemistry, University of Debrecen, Debrecen, P. O. Box 400, Debrecen 4002, Hungary; (D.S.V.); (L.T.); (B.B.); (A.K.-S.); (A.M.)
| |
Collapse
|
15
|
Zhu G, Ma L, Zhang K, Zhou Z, Song H, Yi W. Cascade Reductive Rearrangement for the Stereoselective Synthesis of Multifunctional Piperidinones: A Combined Experimental and Computational Study. ChemistrySelect 2020. [DOI: 10.1002/slct.201904106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Guoxun Zhu
- School of Chemical Engineering and TechnologySun Yat-sen University 135 Xin Gang West Road Guangzhou 510275 P.R. China
| | - Lei Ma
- Key Laboratory of Molecular Target and Clinical Pharmacology & the State Key Laboratory of Respiratory DiseaseSchool of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University Guangzhou, Guangdong 511436 P. R. China
| | - Kaixin Zhang
- School of Chemical Engineering and TechnologySun Yat-sen University 135 Xin Gang West Road Guangzhou 510275 P.R. China
| | - Zhi Zhou
- Key Laboratory of Molecular Target and Clinical Pharmacology & the State Key Laboratory of Respiratory DiseaseSchool of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University Guangzhou, Guangdong 511436 P. R. China
| | - Huacan Song
- School of Chemical Engineering and TechnologySun Yat-sen University 135 Xin Gang West Road Guangzhou 510275 P.R. China
| | - Wei Yi
- School of Chemical Engineering and TechnologySun Yat-sen University 135 Xin Gang West Road Guangzhou 510275 P.R. China
- Key Laboratory of Molecular Target and Clinical Pharmacology & the State Key Laboratory of Respiratory DiseaseSchool of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University Guangzhou, Guangdong 511436 P. R. China
| |
Collapse
|
16
|
Mousavi SH, Mohammadizadeh MR, Arimitsu S, Saberi D, Poorsadeghi S, Genta K. Metal-free syntheses of new azocines viaaddition reactions of enaminones with acenaphthoquinone followed by oxidative cleavages of the corresponding vicinal diols. RSC Adv 2020; 10:20552-20557. [PMID: 35517728 PMCID: PMC9054298 DOI: 10.1039/d0ra02852e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 05/22/2020] [Indexed: 11/21/2022] Open
Abstract
A one-pot, clean and green procedure is described for the syntheses of new azocine derivatives via addition reactions of enaminones with acenaphthoquinone followed by periodic acid-mediated oxidative cleavages of the corresponding vicinal diols. Various derivatives of azocine were prepared and well characterized. The excellent yields, simple synthesis procedure, lack of a need to carry out any tedious work-up and column chromatography, metal-free catalysis, and mild reaction conditions are important features of this protocol. One-pot metal-free periodic acid-mediated syntheses of azocine rings with high yields under mild reaction conditions via the addition reactions of enaminones and acenaphthoquinone.![]()
Collapse
Affiliation(s)
- S. Hekmat Mousavi
- Department of Chemistry
- Faculty of Sciences
- Persian Gulf University
- Bushehr 75169
- Iran
| | | | - Satoru Arimitsu
- Department of Chemistry, Biology and Marine Science
- Faculty of Science
- University of the Ryukyus
- Nakagami
- Japan
| | - Dariush Saberi
- Marine Chemistry Department
- Faculty of Marine Science and Technology
- Persian Gulf University
- Bushehr 75169
- Iran
| | - Samira Poorsadeghi
- Department of Chemistry, Biology and Marine Science
- Faculty of Science
- University of the Ryukyus
- Nakagami
- Japan
| | - Kojya Genta
- Center for Research Advancement and Collaboration
- University of the Ryukyus
- Okinawa 903-0213
- Japan
| |
Collapse
|
17
|
Zhao B, Wu Y, Yuan Y, Shi Z. Copper-catalysed Csp3–Csp cross-couplings between cyclobutanone oxime esters and terminal alkynes induced by visible light. Chem Commun (Camb) 2020; 56:4676-4679. [DOI: 10.1039/d0cc00988a] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A novel transformation for the construction of Csp3–Csp bonds was achieved via a photo-induced copper-catalysed C–C bond cleavage.
Collapse
Affiliation(s)
- Binlin Zhao
- Department of Chemistry and Materials Science
- College of Science
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Yixiao Wu
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Yu Yuan
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| |
Collapse
|
18
|
Yao W, He L, Han D, Zhong A. Sodium Triethylborohydride-Catalyzed Controlled Reduction of Unactivated Amides to Secondary or Tertiary Amines. J Org Chem 2019; 84:14627-14635. [DOI: 10.1021/acs.joc.9b02211] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wubing Yao
- School of Pharmaceutical and Materials Engineering, Taizhou University, Jiaojiang 318000, Zhejiang, China
| | - Lili He
- School of Pharmaceutical and Materials Engineering, Taizhou University, Jiaojiang 318000, Zhejiang, China
| | - Deman Han
- School of Pharmaceutical and Materials Engineering, Taizhou University, Jiaojiang 318000, Zhejiang, China
| | - Aiguo Zhong
- School of Pharmaceutical and Materials Engineering, Taizhou University, Jiaojiang 318000, Zhejiang, China
| |
Collapse
|
19
|
Hydrogenated benzazepines: recent advances in the synthesis and study of biological activity. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02540-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
20
|
Imaizumi T, Yamashita Y, Nakazawa Y, Okano K, Sakata J, Tokuyama H. Total Synthesis of (+)-CC-1065 Utilizing Ring Expansion Reaction of Benzocyclobutenone Oxime Sulfonate. Org Lett 2019; 21:6185-6189. [PMID: 31188001 DOI: 10.1021/acs.orglett.9b01690] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An indole synthesis via ring expansion of benzocyclobutenone oxime sulfonate was developed. Utility of the indole synthesis was demonstrated by the total synthesis of (+)-CC-1065. The middle and right segments were constructed by a sequential ring expansion of the symmetrical benzo-bis-cyclobutenone. The left segment was also constructed via ring expansion of the methyl-substituted benzocyclobutenone oxime sulfonates. After condensation of these three segments, the dienone cyclopropane structure was formed to complete the total synthesis.
Collapse
Affiliation(s)
- Taku Imaizumi
- Graduate School of Pharmaceutical Sciences , Tohoku University , Aoba 6-3, Aramaki , Aoba-ku, Sendai 980-8578 , Japan
| | - Yumi Yamashita
- Graduate School of Pharmaceutical Sciences , Tohoku University , Aoba 6-3, Aramaki , Aoba-ku, Sendai 980-8578 , Japan
| | - Yuki Nakazawa
- Graduate School of Pharmaceutical Sciences , Tohoku University , Aoba 6-3, Aramaki , Aoba-ku, Sendai 980-8578 , Japan
| | - Kentaro Okano
- Graduate School of Pharmaceutical Sciences , Tohoku University , Aoba 6-3, Aramaki , Aoba-ku, Sendai 980-8578 , Japan
| | - Juri Sakata
- Graduate School of Pharmaceutical Sciences , Tohoku University , Aoba 6-3, Aramaki , Aoba-ku, Sendai 980-8578 , Japan
| | - Hidetoshi Tokuyama
- Graduate School of Pharmaceutical Sciences , Tohoku University , Aoba 6-3, Aramaki , Aoba-ku, Sendai 980-8578 , Japan
| |
Collapse
|
21
|
Natho P, Allen LAT, White AJP, Parsons PJ. Transition-Metal-Free Access to Heteroaromatic-Fused 4-Tetralones by the Oxidative Ring Expansion of the Cyclobutanol Moiety. J Org Chem 2019; 84:9611-9626. [PMID: 31288517 DOI: 10.1021/acs.joc.9b01290] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Advances in the transition-metal-free cyclobutanol ring expansion to 4-tetralones under N-bromosuccinimide mediation are described. We have expanded the scope of this ring expansion methodology and investigated the effect substituents on the aromatic ring, and the cyclobutanol moiety, have on the outcome of the reaction. Limitations with certain substituents on the cyclobutanol moiety are also described. Further experimental evidence to support our mechanistic understanding is disclosed, and we now preclude the suggested involvement of a primary radical for this transformation.
Collapse
Affiliation(s)
- Philipp Natho
- Department of Chemistry, Molecular Sciences Research Hub , Imperial College London , W12 0BZ , London , U.K
| | - Lewis A T Allen
- Department of Chemistry, Molecular Sciences Research Hub , Imperial College London , W12 0BZ , London , U.K
| | - Andrew J P White
- Department of Chemistry, Molecular Sciences Research Hub , Imperial College London , W12 0BZ , London , U.K
| | - Philip J Parsons
- Department of Chemistry, Molecular Sciences Research Hub , Imperial College London , W12 0BZ , London , U.K
| |
Collapse
|
22
|
Bakthadoss M, Vinayagam V, Agarwal V, Sharada DS. Three Component, One‐Pot Synthesis of Multifunctional Quinolinopyranpyrazoles
via
Catalyst‐Free Multicomponent Reaction. ChemistrySelect 2019. [DOI: 10.1002/slct.201901806] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
| | - Varathan Vinayagam
- Department of Organic ChemistryUniversity of MadrasGuindy Campus Chennai 600025, Tamilnadu India
| | - Vishal Agarwal
- Department of ChemistryPondicherry University Pondicherry – 605014 India
| | - Duddu S. Sharada
- Department of ChemistryIndian Institute of Technology Hyderabad Kandi- 502285, Sangareddy, Telangana India
| |
Collapse
|
23
|
Niu B, Nie Q, Huang B, Cai M. Heterogeneous Gold(I)‐Catalyzed Oxidative Ring Expansion of 2‐Alkynyl‐1,2‐Dihydropyridines or ‐Quinolines Towards Functionalized Azepines or Benzazepines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900512] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bingbo Niu
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
| | - Quan Nie
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
| | - Bin Huang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
| |
Collapse
|
24
|
Hu W, Teng F, Hu H, Luo S, Zhu Q. Pd-Catalyzed C(sp 2)-H Imidoylative Annulation: A General Approach To Construct Dibenzoox(di)azepines. J Org Chem 2019; 84:6524-6535. [PMID: 31050283 DOI: 10.1021/acs.joc.9b00683] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A general method to construct the scaffolds of dibenzooxazepine and dibenzodiazepine, through Pd-catalyzed isocyanide insertion and intramolecular C(sp2)-H activation, has been developed. This is the first example of seven-membered heterocycle formation by C-H imidoylative annulation.
Collapse
Affiliation(s)
- Weiming Hu
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health , Chinese Academy of Sciences , 190 Kaiyuan Avenue , Guangzhou 510530 , China.,University of Chinese Academy of Sciences, No. 19(A) Yuquan Road , Shijingshan District, Beijing 100049 , China
| | - Fan Teng
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health , Chinese Academy of Sciences , 190 Kaiyuan Avenue , Guangzhou 510530 , China.,University of Chinese Academy of Sciences, No. 19(A) Yuquan Road , Shijingshan District, Beijing 100049 , China
| | - Huaanzi Hu
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health , Chinese Academy of Sciences , 190 Kaiyuan Avenue , Guangzhou 510530 , China.,University of Chinese Academy of Sciences, No. 19(A) Yuquan Road , Shijingshan District, Beijing 100049 , China
| | - Shuang Luo
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health , Chinese Academy of Sciences , 190 Kaiyuan Avenue , Guangzhou 510530 , China.,University of Chinese Academy of Sciences, No. 19(A) Yuquan Road , Shijingshan District, Beijing 100049 , China
| | - Qiang Zhu
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health , Chinese Academy of Sciences , 190 Kaiyuan Avenue , Guangzhou 510530 , China.,University of Chinese Academy of Sciences, No. 19(A) Yuquan Road , Shijingshan District, Beijing 100049 , China
| |
Collapse
|
25
|
Dong X, Kita Y, Oestreich M. Kinetische Racematspaltung α‐hydroxysubstituierter Oximether durch enantioselektive Cu‐H‐katalysierte Si‐O‐Kupplung. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802947] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Xichang Dong
- Institut für ChemieTechnische Universität Berlin Straße des 17. Juni 115 10623 Berlin Deutschland
| | - Yuji Kita
- Institut für ChemieTechnische Universität Berlin Straße des 17. Juni 115 10623 Berlin Deutschland
| | - Martin Oestreich
- Institut für ChemieTechnische Universität Berlin Straße des 17. Juni 115 10623 Berlin Deutschland
| |
Collapse
|
26
|
Dong X, Kita Y, Oestreich M. Kinetic Resolution of α‐Hydroxy‐Substituted Oxime Ethers by Enantioselective Cu−H‐Catalyzed Si−O Coupling. Angew Chem Int Ed Engl 2018; 57:10728-10731. [DOI: 10.1002/anie.201802947] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Xichang Dong
- Institut für ChemieTechnische Universität Berlin Strasse des 17. Juni 115 10623 Berlin Germany
| | - Yuji Kita
- Institut für ChemieTechnische Universität Berlin Strasse des 17. Juni 115 10623 Berlin Germany
| | - Martin Oestreich
- Institut für ChemieTechnische Universität Berlin Strasse des 17. Juni 115 10623 Berlin Germany
| |
Collapse
|
27
|
Huang YJ, Qiao B, Zhang FG, Ma JA. Facile construction of trifluoromethyl-azirines via one-pot metal-free Neber reaction. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
|
28
|
Peneau A, Tricart Q, Guillou C, Chabaud L. Mild rhodium(iii)-catalyzed intramolecular annulation of benzamides with allylic alcohols to access azepinone derivatives. Chem Commun (Camb) 2018; 54:5891-5894. [DOI: 10.1039/c8cc03319f] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A mild intramolecular Rh(iii)-catalyzed annulation by C–H activation to access azepinone derivatives has been developed.
Collapse
Affiliation(s)
- Augustin Peneau
- Institut de Chimie des Substances Naturelles
- CNRS UPR 2301
- Univ Paris-Sud
- Université Paris-Saclay
- 91198 Gif-sur-Yvette
| | - Quentin Tricart
- Institut de Chimie des Substances Naturelles
- CNRS UPR 2301
- Univ Paris-Sud
- Université Paris-Saclay
- 91198 Gif-sur-Yvette
| | - Catherine Guillou
- Institut de Chimie des Substances Naturelles
- CNRS UPR 2301
- Univ Paris-Sud
- Université Paris-Saclay
- 91198 Gif-sur-Yvette
| | - Laurent Chabaud
- Institut de Chimie des Substances Naturelles
- CNRS UPR 2301
- Univ Paris-Sud
- Université Paris-Saclay
- 91198 Gif-sur-Yvette
| |
Collapse
|
29
|
Gao P, Bai Z. Carbon Tetrabromide/Triphenylphosphine-Activated Beckmann Rearrangement of Ketoximes for Synthesis of Amides. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201700191] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Peng Gao
- Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering; Baoji University of Arts and Sciences; Baoji Shaanxi 721013 China
| | - Zijing Bai
- Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering; Baoji University of Arts and Sciences; Baoji Shaanxi 721013 China
| |
Collapse
|
30
|
Takikawa H, Sato S, Seki R, Suzuki K. Oxidative Ring Opening of Benzocyclobutenone Oximes: Novel Access to Stable Nitrile Oxides. CHEM LETT 2017. [DOI: 10.1246/cl.170328] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiroshi Takikawa
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8551
| | - Shogo Sato
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8551
| | - Ryota Seki
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8551
| | - Keisuke Suzuki
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8551
| |
Collapse
|
31
|
Yang QL, Li YQ, Ma C, Fang P, Zhang XJ, Mei TS. Palladium-Catalyzed C(sp 3)-H Oxygenation via Electrochemical Oxidation. J Am Chem Soc 2017; 139:3293-3298. [PMID: 28177235 DOI: 10.1021/jacs.7b01232] [Citation(s) in RCA: 260] [Impact Index Per Article: 37.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Palladium-catalyzed C-H activation/C-O bond-forming reactions have emerged as attractive tools for organic synthesis. Typically, these reactions require strong chemical oxidants, which convert organopalladium(II) intermediates into the PdIII or PdIV oxidation state to promote otherwise challenging C-O reductive elimination. However, previously reported oxidants possess significant disadvantages, including poor atom economy, high cost, and the formation of undesired byproducts. To overcome these issues, we report an electrochemical strategy that takes advantage of anodic oxidation of PdII to induce selective C-O reductive elimination with a variety of oxyanion coupling partners.
Collapse
Affiliation(s)
- Qi-Liang Yang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China.,Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology , Meilong Road No. 130, Shanghai 200237, China
| | - Yi-Qian Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Cong Ma
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Ping Fang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Xiu-Jie Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Tian-Sheng Mei
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| |
Collapse
|
32
|
Wang J, Tang S, Zhu Q. Intramolecular Imidoylative Heck Reaction: Synthesis of Cyclic Ketoimines from Functionalized Isocyanide. Org Lett 2016; 18:3074-7. [DOI: 10.1021/acs.orglett.6b01174] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Jian Wang
- State Key Laboratory of Respiratory
Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Shi Tang
- State Key Laboratory of Respiratory
Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Qiang Zhu
- State Key Laboratory of Respiratory
Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| |
Collapse
|
33
|
Lu QQ, Yu HZ, Fu Y. Computational Study of Formic Acid Dehydrogenation Catalyzed by AlIII
-Bis(imino)pyridine. Chemistry 2016; 22:4584-91. [DOI: 10.1002/chem.201504573] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Qian-Qian Lu
- Collaborative Innovation Centre of Chemistry for Energy Materials; CAS Key Laboratory of Urban Pollutant Conversion; Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Hai-Zhu Yu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials; Anhui University; Hefei 230601
| | - Yao Fu
- Collaborative Innovation Centre of Chemistry for Energy Materials; CAS Key Laboratory of Urban Pollutant Conversion; Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| |
Collapse
|
34
|
Abd El-Aal HAK, Khalaf AA, El-Khawaga AMA. Friedel–Crafts Chemistry. Part 43. A Convergent Construction of Some New Bridged Aza-Bicyclic Analogues of Azocine, Azonine, and Azecine via Friedel–Crafts Ring Closures. Aust J Chem 2015; 68:404. [DOI: 10.1071/ch14284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Our present study provides an expedient general approach for the synthesis of some novel bridged dibenzo-azocinone, -azoninone, -azecinone, -azocine, -azonine, and -azecine derivatives via Friedel–Crafts intramolecular ring-closure reactions. The methodology is realized by a four-step protocol involving first preparation of 7-methyl-3,3-diphenylindoline through the reduction of 7-methyl-3,3-diphenylindolin-2-one followed by N-alkylations with different haloesters (α-, β- or γ-). The resulting indoline ester derivatives were allowed to react both by addition of Grignard reagents to afford alcohols and by hydrolysis to afford acids. Particular attention has been given to the novel structures especially in regard to the promising pharmaceutical and therapeutic values associated with their skeletons.
Collapse
|
35
|
Bhattacharya P, Senapati K, Chattopadhyay K, Mandal SM, Basak A. Synthesis of benzochromenes and dihydrophenanthridines with helical motifs using Garratt–Braverman and Buchwald–Hartwig reactions. RSC Adv 2015. [DOI: 10.1039/c5ra12512j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
X-ray structures of dihydrophenanthiridine (a) and benzochromene (b) showing greater helicity in (a).
Collapse
Affiliation(s)
| | - Kalyan Senapati
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | | | - Santi M. Mandal
- Central Research Facility
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Amit Basak
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| |
Collapse
|
36
|
|
37
|
Kim S, Mo J, Kim J, Ryu T, Lee PH. Aza-[4+3] and Aza-[3+2] Annulations for Synthesis of Dihydroazepines and Dihydropyrroles from Alkynes, Sulfonyl Azides, and 1,3-Dienes. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201402071] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
38
|
|
39
|
Shi H, Guo T, Zhang-Negrerie D, Du Y, Zhao K. Synthesis of substituted tetrahydron-1H-carbazol-1-one and analogs via PhI(OCOCF3)2-mediated oxidative C–C bond formation. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.02.083] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
40
|
Tokuyama H, Cho H, Iwama Y, Noro T, Okano K. Formation of Xanthone Oxime and Related Compounds Using a Combination of tert-Butyl Nitrite and Potassium Hexamethyldisilazide. HETEROCYCLES 2014. [DOI: 10.3987/com-13-s(s)110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
41
|
Stereoselective Synthesis of (3R)-3-Alkyl-4,1-Benzoxazepine-2,5-Diones. Chirality 2013; 25:865-70. [DOI: 10.1002/chir.22227] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Accepted: 07/05/2013] [Indexed: 11/07/2022]
|
42
|
Sun M, Zhang T, Bao W. FeCl3-catalyzed cascade cyclization in one pot: synthesis of ring-fused tetrahydroquinoline derivatives from arylamines and N-substituted lactams. J Org Chem 2013; 78:8155-60. [PMID: 23819553 DOI: 10.1021/jo400979h] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Multiple cross-dehydrogenative-coupling reactions catalyzed by FeCl3 in one pot were developed. Arylamines and N-substituted lactams were reacted, and ring-fused tetrahydroquinoline derivatives were formed by two C-C bonds and one C-N bond formation as well as one C-N bond cleavage. The lactams were also used as solvent.
Collapse
Affiliation(s)
- Manman Sun
- Department of Chemistry, Zhejiang University (Xixi Campus), Hangzhou 310028, People's Republic of China
| | | | | |
Collapse
|
43
|
Flisak Z, Spaleniak GP, Bremmek M. Impact of Organoaluminum Compounds on Phenoxyimine Ligands in Coordinative Olefin Polymerization. A Theoretical Study. Organometallics 2013. [DOI: 10.1021/om4003347] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zygmunt Flisak
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052
Opole, Poland
| | | | - Maria Bremmek
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052
Opole, Poland
| |
Collapse
|
44
|
Sze EML, Koh MJ, Tjia YM, Rao W, Chan PWH. Synthesis of (Z)-1,2-dihydro-1-tosylbenzo[b]azepin-3-ones by two-step, one-pot gold-catalyzed tandem heterocyclization/Petasis–Ferrier rearrangement of 2-(N-(prop-2-ynyl)-N-tosylamino)benzaldehydes. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.04.069] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
45
|
Iwama Y, Okano K, Sugimoto K, Tokuyama H. Enantiocontrolled Total Synthesis of (−)-Mersicarpine. Chemistry 2013; 19:9325-34. [DOI: 10.1002/chem.201301040] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Indexed: 11/06/2022]
|
46
|
Shi Z, Grohmann C, Glorius F. Mild rhodium(III)-catalyzed cyclization of amides with α,β-unsaturated aldehydes and ketones to azepinones: application to the synthesis of the homoprotoberberine framework. Angew Chem Int Ed Engl 2013; 52:5393-7. [PMID: 23592552 DOI: 10.1002/anie.201301426] [Citation(s) in RCA: 164] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Indexed: 01/09/2023]
Affiliation(s)
- Zhuangzhi Shi
- Universität Münster, Organisch-Chemisches Institut, Corrensstrasse 40, 48149 Münster, Germany
| | | | | |
Collapse
|
47
|
Shi Z, Grohmann C, Glorius F. Milde Rhodium(III)-katalysierte Cyclisierung von Amiden mit α,β-ungesättigten Aldehyden und Ketonen zu Azepinonen: Anwendung in der Synthese des Homoprotoberberin-Gerüsts. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301426] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
48
|
Chang YH, Nakajima Y, Ozawa F. A Bis(phosphaethenyl)pyridine Complex of Iridium(I): Synthesis and Catalytic Application to N-Alkylation of Amines with Alcohols. Organometallics 2013. [DOI: 10.1021/om4000743] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yung-Hung Chang
- International
Research Center
for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yumiko Nakajima
- International
Research Center
for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
- JST-PRESTO, Uji, Kyoto 611-0011, Japan
| | - Fumiyuki Ozawa
- International
Research Center
for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| |
Collapse
|
49
|
Scholl SA, Wadepohl H, Gade LH. Zirconium Hydrazinediido Complexes Derived from Cyclic Hydrazines and Their Role in the Catalytic Synthesis of 1,7-Annulated Indoles. Organometallics 2013. [DOI: 10.1021/om301235d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Solveig A. Scholl
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Lutz H. Gade
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| |
Collapse
|
50
|
Bagnoli L, Casini S, Marini F, Santi C, Testaferri L. Vinyl selenones: annulation agents for the synthesis of six-membered benzo-1,4-heterocyclic compounds. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.11.036] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|