1
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Alexeev MS, Strelkova TV, Ilyin MM, Nelyubina YV, Bespalov IA, Medvedev MG, Khrustalev VN, Kuznetsov NY. Amine adducts of triallylborane as highly reactive allylborating agents for Cu(I)-catalyzed allylation of chiral sulfinylimines. Org Biomol Chem 2024; 22:4680-4696. [PMID: 38716901 DOI: 10.1039/d4ob00291a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
The implementation of selective catalytic processes with highly active reagents is an attractive strategy that meets the modern principles of sustainable development of chemistry. In the current study, we for the first time describe the method and general principles of Cu(I)-catalyzed allylation of imines with amine adducts of allylic triorganoboranes. Triallylborane is an extremely reactive compound and cannot be used for the catalytic allylation of imines, whereas its amine adducts are ideal substrates for catalysis. The structure of the amine fragment successfully balances the safety, selectivity and stability of the allylboron reagent, allowing it to demonstrate high activity in catalytic allylation reactions, exceeding many times any known allylboranes. The obtained results are supported by quantitative kinetics data and DFT calculations. The catalytic efficacy of the system was demonstrated on model sulfinylimines (23 examples). High diastereoselectivity up to >99% was achieved, including for the gram-scale synthesis of 2-hydroxyphenyl-derivatives. Taking into account the high reactivity and unsurpassed atom-economy of amine adducts of triallylborane (AAT), they can be considered as prospective allylation reagents with Cu(I) and other appropriate metallocatalysts.
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Affiliation(s)
- Michael S Alexeev
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
| | - Tatiana V Strelkova
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
| | - Michael M Ilyin
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
| | - Yulia V Nelyubina
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
| | - Ivan A Bespalov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
- Lomonosov Moscow State University, Leninskie Gory 1 (3), Moscow, 119991, Russian Federation
| | - Michael G Medvedev
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
| | - Victor N Khrustalev
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
- Peoples Friendship University of Russia, Miklukho-Maklay st. 6, 117198 Moscow, Russian Federation
| | - Nikolai Yu Kuznetsov
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
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2
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Wang W, Shen C, Zhang L, Dong K. Synthesis of Chiral α-Aryl Ketones by Photoredox/Nickel-Catalyzed Enantioconvergent Acyl Cross-Coupling with Organotrifluoroborate. Org Lett 2024; 26:850-854. [PMID: 38251833 DOI: 10.1021/acs.orglett.3c04004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Photoredox/nickel-catalyzed enantioconvergent acyl cross-coupling of carboxylic derivatives with racemic secondary organotrifluoroborate was developed for the synthesis of an enolizable chiral α-aryl ketone under mild neutral conditions. Moderate to high yields and good enantioselectivities were achieved.
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Affiliation(s)
- Weichen Wang
- Shanghai Frontiers Science Center of Molecule Intelligent Syntheses and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Chaoren Shen
- Shanghai Frontiers Science Center of Molecule Intelligent Syntheses and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Linli Zhang
- Shanghai Frontiers Science Center of Molecule Intelligent Syntheses and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Kaiwu Dong
- Shanghai Frontiers Science Center of Molecule Intelligent Syntheses and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
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3
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Robey JMS, Maity S, Aleshire SL, Ghosh A, Yadaw AK, Roy S, Mear SJ, Jamison TF, Sirasani G, Senanayake CH, Stringham RW, Gupton BF, Donsbach KO, Nelson RC, Shanahan CS. Application of Chiral Transfer Reagents to Improve Stereoselectivity and Yields in the Synthesis of the Antituberculosis Drug Bedaquiline. Org Process Res Dev 2023; 27:2146-2159. [PMID: 38025988 PMCID: PMC10661061 DOI: 10.1021/acs.oprd.3c00287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Indexed: 12/01/2023]
Abstract
Bedaquiline (BDQ) is an important drug for treating multidrug-resistant tuberculosis (MDR-TB), a worldwide disease that causes more than 1.6 million deaths yearly. The current synthetic strategy adopted by the manufacturers to assemble this molecule relies on a nucleophilic addition reaction of a quinoline fragment to a ketone, but it suffers from low conversion and no stereoselectivity, which subsequently increases the cost of manufacturing BDQ. The Medicines for All Institute (M4ALL) has developed a new reaction methodology to this process that not only allows high conversion of starting materials but also results in good diastereo- and enantioselectivity toward the desired BDQ stereoisomer. A variety of chiral lithium amides derived from amino acids were studied, and it was found that lithium (R)-2-(methoxymethyl)pyrrolidide, obtained from d-proline, results in high assay yield of the desired syn-diastereomer pair (82%) and with considerable stereocontrol (d.r. = 13.6:1, e.r. = 3.6:1, 56% ee), providing BDQ in up to a 64% assay yield before purification steps toward the final API. This represents a considerable improvement in the BDQ yield compared to previously reported conditions and could be critical to further lowering the cost of this life-saving drug.
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Affiliation(s)
- Juliana M. S. Robey
- Medicines
for All Institute, Virginia Commonwealth University, Richmond, Virginia 23284-3068, United
States
| | - Sanjay Maity
- Medicines
for All Institute, Virginia Commonwealth University, Richmond, Virginia 23284-3068, United
States
| | - Sarah L. Aleshire
- Medicines
for All Institute, Virginia Commonwealth University, Richmond, Virginia 23284-3068, United
States
| | - Angshuman Ghosh
- R&D
Centre, TCG Life Sciences Pvt. Limited, Kolkata, WB 700091, India
| | - Ajay K. Yadaw
- R&D
Centre, TCG Life Sciences Pvt. Limited, Kolkata, WB 700091, India
| | - Subho Roy
- R&D
Centre, TCG Life Sciences Pvt. Limited, Kolkata, WB 700091, India
| | - Sarah Jane Mear
- Department
of Chemistry, Massachusetts Institute of
Technology, Cambridge, Massachusetts 02139, United States
| | - Timothy F. Jamison
- Department
of Chemistry, Massachusetts Institute of
Technology, Cambridge, Massachusetts 02139, United States
| | - Gopal Sirasani
- TCG
GreenChem, Inc., Richmond, Virginia 23219, United States
| | | | - Rodger W. Stringham
- Medicines
for All Institute, Virginia Commonwealth University, Richmond, Virginia 23284-3068, United
States
| | - B. Frank Gupton
- Medicines
for All Institute, Virginia Commonwealth University, Richmond, Virginia 23284-3068, United
States
| | - Kai O. Donsbach
- Medicines
for All Institute, Virginia Commonwealth University, Richmond, Virginia 23284-3068, United
States
| | - Ryan C. Nelson
- Medicines
for All Institute, Virginia Commonwealth University, Richmond, Virginia 23284-3068, United
States
| | - Charles S. Shanahan
- Medicines
for All Institute, Virginia Commonwealth University, Richmond, Virginia 23284-3068, United
States
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4
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Zhou X, Huang Q, Guo J, Dai L, Lu Y. Enantioselective De Novo Synthesis of α,α-Diaryl Ketones from Alkynes. Angew Chem Int Ed Engl 2023; 62:e202310078. [PMID: 37724448 DOI: 10.1002/anie.202310078] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 09/20/2023]
Abstract
Chiral α,α-diaryl ketones are structural motifs commonly present in bioactive molecules, and they are also valuable building blocks in synthetic organic chemistry. However, catalytic asymmetric synthesis of α,α-diaryl ketones bearing a tertiary stereogenic center remains largely unsolved. Herein, we report a catalytic de novo enantioselective synthesis of α,α-diaryl ketones from simple alkynes via chiral phosphoric acid (CPA) catalysis. A broad range of enolizable α,α-diaryl ketones are prepared in good yields and with excellent enantioselectivities. The described protocol also serves as an efficient deuteration method for the preparation of enantiomerically enriched deuterated α,α-diaryl ketones. Using the methodology reported, bioactive molecules, including one of the best-selling anti-breast cancer drugs, tamoxifen, are readily synthesized.
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Affiliation(s)
- Xueting Zhou
- Joint School of National University of Singapore, Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Qingqin Huang
- Joint School of National University of Singapore, Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Jiami Guo
- Joint School of National University of Singapore, Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Lei Dai
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Yixin Lu
- Joint School of National University of Singapore, Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
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5
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Liu Y, Zhang L, Zhang Y, Cao S, Ban X, Yin Y, Zhao X, Jiang Z. Asymmetric Olefin Isomerization via Photoredox Catalytic Hydrogen Atom Transfer and Enantioselective Protonation. J Am Chem Soc 2023; 145:18307-18315. [PMID: 37552539 DOI: 10.1021/jacs.3c03732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
Asymmetric olefin isomerization can be appreciated as an ideal synthetic approach to access valuable enantioenriched C═C-containing molecules due to the excellent atom economy. Nonetheless, its occurrence usually requires a thermodynamic advantage, namely, a higher stability of the product to the substrate. It has thus led to rather limited examples of success. Herein, we report a photoredox catalytic hydrogen atom transfer (HAT) and enantioselective protonation strategy for the challenging asymmetric olefin isomerization. As a paradigm, by establishing a dual catalyst system involving a visible light photosensitizer DPZ and a chiral phosphoric acid, with the assistance of N-hydroxyimide to perform HAT, a wide array of allylic azaarene derivatives, featuring α-tertiary carbon stereocenters and β-C═C bonds, was synthesized with high yields, ees, and E/Z ratios starting from the conjugated α-substituted alkenylazaarene E/Z-mixtures. The good compatibility of assembling deuterium on stereocenters by using inexpensive D2O as a deuterium source further underscores the broad applicability and promising utility of this strategy. Moreover, mechanistic studies have provided clear insights into its challenges in terms of reactivity and enantioselectivity. The exploration will robustly inspire the development of thermodynamically unfavorable asymmetric olefin isomerizations.
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Affiliation(s)
- Yang Liu
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Linghong Zhang
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Yong Zhang
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Shanshan Cao
- School of Chemistry and Chemical Engineering, Pingyuan Laboratory, Henan Normal University, Xinxiang 453007, Henan, P. R. China
| | - Xu Ban
- School of Chemistry and Chemical Engineering, Pingyuan Laboratory, Henan Normal University, Xinxiang 453007, Henan, P. R. China
| | - Yanli Yin
- School of Chemistry and Chemical Engineering, Pingyuan Laboratory, Henan Normal University, Xinxiang 453007, Henan, P. R. China
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou 451001, Henan, P. R. China
| | - Xiaowei Zhao
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
| | - Zhiyong Jiang
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, Henan, P. R. China
- School of Chemistry and Chemical Engineering, Pingyuan Laboratory, Henan Normal University, Xinxiang 453007, Henan, P. R. China
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6
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Bashir M, Arshad M, Begum R, Aggarwal VK. Application of Enantioselective Sulfur Ylide Epoxidation to a Short Asymmetric Synthesis of Bedaquiline, a Potent Anti-Tuberculosis Drug. Org Lett 2023; 25:4281-4285. [PMID: 37284829 PMCID: PMC10278180 DOI: 10.1021/acs.orglett.3c01286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Indexed: 06/08/2023]
Abstract
A highly selective asymmetric synthesis of a potent anti-TB drug (-)-bedaquiline is accomplished using sulfur ylide asymmetric epoxidation, employing (+)-isothiocineole as an inexpensive and readily available chiral sulfide. Excellent enantioselectivity (er 96:4) and diastereoselectivity (dr 90:10) were obtained for the construction of the key diaryl epoxide, which was subsequently subjected to a highly regioselective ring opening (96:4). The synthesis was completed in nine steps starting from commercially available aldehyde in 8% overall yield.
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Affiliation(s)
- Maryam Bashir
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K.
- Centre
for Organic Chemistry, School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Muhammad Arshad
- Institute
of Chemistry, The Islamia University of
Bahawalpur, Bahawalpur 63100, Pakistan
| | - Robina Begum
- Centre
for Organic Chemistry, School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Varinder K. Aggarwal
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K.
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7
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Ahmad T, Gao F, Li J, Zhang Z, Song T, Yuan Q, Zhang W. Synergistic Li/Li Bimetallic System for the Asymmetric Synthesis of Antituberculosis Drug TBAJ-587. J Org Chem 2023. [PMID: 37125776 DOI: 10.1021/acs.joc.3c00705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
TBAJ-587, an analogue of the antituberculosis drug bedaquiline (BDQ), bearing a diarylquinoline skeleton retains the high bacterial potency, is less toxic, and has a better pharmacokinetic profile than the parent molecule, which has entered phase I clinical trials. In contrast to its fascinating bioactivity, however, the highly efficient synthesis of this molecule is still an unsolved challenge. Herein, the first asymmetric synthesis of TBAJ-587 based on a synergistic Li/Li bimetallic system is reported. The product could be obtained in an excellent yield of 90% and an enantiomeric ratio (er) of 80:20. Furthermore, the reaction could be conducted on a 5 g scale, and the product was obtained with 99.9:0.1 er after a simple recrystallization. The realization of this protocol will greatly aid the demand for clinical drug production.
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Affiliation(s)
- Tanveer Ahmad
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Feng Gao
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jing Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zhenfeng Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Tao Song
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Qianjia Yuan
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Wanbin Zhang
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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8
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1,6-Conjugate addition of para-quinone methides using gem-diborylcarbanions: Practical access to gem-diborylalkanes bearing vicinal tertiary/quaternary stereocenters. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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9
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Asymmetric synthesis of bedaquiline based on bimetallic activation and non-covalent interaction promotion strategies. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1387-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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10
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Mear SJ, Lucas T, Ahlqvist GP, Robey JMS, Dietz J, Khairnar PV, Maity S, Williams CL, Snead DR, Nelson RC, Opatz T, Jamison TF. Diastereoselectivity is in the Details: Minor Changes Yield Major Improvements to the Synthesis of Bedaquiline**. Chemistry 2022; 28:e202201311. [PMID: 35675114 PMCID: PMC9545417 DOI: 10.1002/chem.202201311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Indexed: 11/23/2022]
Abstract
Bedaquiline is a crucial medicine in the global fight against tuberculosis, yet its high price places it out of reach for many patients. Herein, we describe improvements to the key industrial lithiation‐addition sequence that enable a higher yielding and therefore more economical synthesis of bedaquiline. Prioritization of mechanistic understanding and multi‐lab reproducibility led to optimized reaction conditions that feature an unusual base‐salt pairing and afford a doubling of the yield of racemic bedaquiline. We anticipate that implementation of these improvements on manufacturing scale will be facile, thereby substantially increasing the accessibility of this essential medication.
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Affiliation(s)
- Sarah Jane Mear
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Tobias Lucas
- Department of Chemistry Johannes Gutenberg University Duesbergweg 10–14 55128 Mainz Germany
| | - Grace P. Ahlqvist
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Juliana M. S. Robey
- Medicines for All Institute Department of Chemistry and Life Sciences Engineering Virginia Commonwealth University Richmond Virginia 23284 USA
| | - Jule‐Philipp Dietz
- Department of Chemistry Johannes Gutenberg University Duesbergweg 10–14 55128 Mainz Germany
| | - Pankaj V. Khairnar
- Medicines for All Institute Department of Chemistry and Life Sciences Engineering Virginia Commonwealth University Richmond Virginia 23284 USA
| | - Sanjay Maity
- Medicines for All Institute Department of Chemistry and Life Sciences Engineering Virginia Commonwealth University Richmond Virginia 23284 USA
| | - Corshai L. Williams
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - David R. Snead
- Medicines for All Institute Department of Chemistry and Life Sciences Engineering Virginia Commonwealth University Richmond Virginia 23284 USA
| | - Ryan C. Nelson
- Medicines for All Institute Department of Chemistry and Life Sciences Engineering Virginia Commonwealth University Richmond Virginia 23284 USA
| | - Till Opatz
- Department of Chemistry Johannes Gutenberg University Duesbergweg 10–14 55128 Mainz Germany
| | - Timothy F. Jamison
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
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11
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Roy D, Ali K, Panda G. Unveiling p-quinone methide (QM) chemistry to synthesize bedaquiline (TMC 207) like architectures. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130493] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Kumar A, Karkara BB, Panda G. Novel candidates in the clinical development pipeline for TB drug development and their Synthetic Approaches. Chem Biol Drug Des 2021; 98:787-827. [PMID: 34397161 DOI: 10.1111/cbdd.13934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 08/03/2021] [Accepted: 08/07/2021] [Indexed: 11/29/2022]
Abstract
Tuberculosis (TB) is an infection caused by Mycobacterium tuberculosis (Mtb) and one of the deadliest infectious diseases in the world. Mtb has the ability to become dormant within the host and to develop resistance. Hence, new antitubercular agents are required to overcome problems in the treatment of multidrug resistant-Tb (MDR-Tb) and extensively drug resistant-Tb (XDR-Tb) along with shortening the treatment time. Several efforts are being made to develop very effective new drugs for Tb, within the pharmaceutical industry, the academia, and through public private partnerships. This review will address the anti-tubercular activities, biological target, mode of action, synthetic approaches and thoughtful concept for the development of several new drugs currently in the clinical trial pipeline (up to October 2019) for tuberculosis. The aim of this review may be very useful in scheming new chemical entities (NCEs) for Mtb.
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Affiliation(s)
- Amit Kumar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, UP, India
| | - Bidhu Bhusan Karkara
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, UP, India.,Department of Pharmaceutical Science, Vignan's Foundation for Science, Technology and Research University, Guntur, 522213, AP, India
| | - Gautam Panda
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, UP, India
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13
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Wang J, Qi X, Min XL, Yi W, Liu P, He Y. Tandem Iridium Catalysis as a General Strategy for Atroposelective Construction of Axially Chiral Styrenes. J Am Chem Soc 2021; 143:10686-10694. [PMID: 34228930 DOI: 10.1021/jacs.1c04400] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Axially chiral styrenes are of great interest since they may serve as a class of novel chiral ligands in asymmetric synthesis. However, only recently have strategies been developed for their enantioselective preparation. Thus, the development of novel and efficient methodologies is highly desirable. Herein, we reported the first tandem iridium catalysis as a general strategy for the synthesis of axially chiral styrenes enabled by Asymmetric Allylic Substitution-Isomerization (AASI) using cinnamyl carbonate analogues as electrophiles and naphthols as nucleophiles. In this approach, axially chiral styrenes were generated through two independent iridium-catalytic cycles: iridium-catalyzed asymmetric allylic substitution and in situ isomerization via stereospecific 1,3-hydride transfer catalyzed by the same iridium catalyst. Both experimental and computational studies demonstrated that the isomerization proceeded by iridium-catalyzed benzylic C-H bond oxidative addition, followed by terminal C-H reductive elimination. Amid the central-to-axial chirality transfer, the hydroxyl of naphthol plays a crucial role in ensuring the stereospecificity by coordinating with the Ir(I) center. The process accommodated broad functional group compatibility. The products were generated in excellent yields with excellent to high enantioselectivities, which could be transformed to various axially chiral molecules.
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Affiliation(s)
- Jie Wang
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Xiaotian Qi
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Xiao-Long Min
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Wenbin Yi
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Ying He
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
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14
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Barbaro L, Nagalingam G, Triccas JA, Tan L, West NP, Baell JB, Priebbenow DL. Synthesis and evaluation of pyridine-derived bedaquiline analogues containing modifications at the A-ring subunit. RSC Med Chem 2021; 12:943-959. [PMID: 34223160 DOI: 10.1039/d1md00063b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 04/22/2021] [Indexed: 11/21/2022] Open
Abstract
Despite promising efficacy, the clinical use of the anti-tubercular therapeutic bedaquiline has been restricted due to safety concerns. To date, limited SAR studies have focused on the quinoline ring (A-ring), and as such, we set out to explore modifications within this region in an attempt to discover new bedaquiline variants with an improved safety profile. We herein report the development of unique synthetic strategies that facilitated access to novel bedaquiline analogues leading to the discovery that anti-tubercular activity could be retained following replacement of the quinoline motif with pyridine heterocycles. This discovery is anticipated to open up multiple new avenues for exploration in the design of improved anti-tubercular therapeutics.
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Affiliation(s)
- Lisa Barbaro
- Monash Institute of Pharmaceutical Sciences, Monash University 381 Royal Parade Parkville Victoria 3052 Australia
| | - Gayathri Nagalingam
- School of Medical Sciences and Marie Bashir Institute, The University of Sydney Sydney NSW 2006 Australia
| | - James A Triccas
- School of Medical Sciences and Marie Bashir Institute, The University of Sydney Sydney NSW 2006 Australia
| | - Lendl Tan
- School of Chemistry and Molecular Bioscience, The University of Queensland St Lucia Queensland 4072 Australia.,Australian Infectious Diseases Research Centre St. Lucia Queensland 4067 Australia
| | - Nicholas P West
- School of Chemistry and Molecular Bioscience, The University of Queensland St Lucia Queensland 4072 Australia.,Australian Infectious Diseases Research Centre St. Lucia Queensland 4067 Australia
| | - Jonathan B Baell
- Monash Institute of Pharmaceutical Sciences, Monash University 381 Royal Parade Parkville Victoria 3052 Australia
| | - Daniel L Priebbenow
- School of Chemistry, The University of Melbourne Parkville Victoria 3010 Australia
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15
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Inhibitors of F 1F 0-ATP synthase enzymes for the treatment of tuberculosis and cancer. Future Med Chem 2021; 13:911-926. [PMID: 33845594 DOI: 10.4155/fmc-2021-0010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The spectacular success of the mycobacterial F1F0-ATP synthase inhibitor bedaquiline for the treatment of drug-resistant tuberculosis has generated wide interest in the development of other inhibitors of this enzyme. Work in this realm has included close analogues of bedaquiline with better safety profiles and 'bedaquiline-like' compounds, some of which show potent antibacterial activity in vitro although none have yet progressed to clinical trials. The search has lately extended to a range of new scaffolds as potential inhibitors, including squaramides, diaminoquinazolines, chloroquinolines, dihydropyrazolo[1,5-a]pyrazin-4-ones, thiazolidinediones, diaminopyrimidines and tetrahydroquinolines. Because of the ubiquitous expression of ATP synthase enzymes, there has also been interest in inhibitors of other bacterial ATP synthases, as well as inhibitors of human mitochondrial ATP synthase for cancer therapy. The latter encompass both complex natural products and simpler small molecules. The review seeks to demonstrate the breadth of the structural types of molecules able to effectively inhibit the function of variants of this intriguing enzyme.
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16
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Cao J, Zhu SF. Catalytic Enantioselective Proton Transfer Reactions. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200350] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jin Cao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Shou-Fei Zhu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
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17
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Golec JC, Carter EM, Ward JW, Whittingham WG, Simón L, Paton RS, Dixon DJ. BIMP-Catalyzed 1,3-Prototropic Shift for the Highly Enantioselective Synthesis of Conjugated Cyclohexenones. Angew Chem Int Ed Engl 2020; 59:17417-17422. [PMID: 32558981 PMCID: PMC7540019 DOI: 10.1002/anie.202006202] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/03/2020] [Indexed: 12/18/2022]
Abstract
A bifunctional iminophosphorane (BIMP)-catalysed enantioselective synthesis of α,β-unsaturated cyclohexenones through a facially selective 1,3-prototropic shift of β,γ-unsaturated prochiral isomers, under mild reaction conditions and in short reaction times, on a range of structurally diverse substrates, is reported. α,β-Unsaturated cyclohexenone products primed for downstream derivatisation were obtained in high yields (up to 99 %) and consistently high enantioselectivity (up to 99 % ee). Computational studies into the reaction mechanism and origins of enantioselectivity, including multivariate linear regression of TS energy, were carried out and the obtained data were found to be in good agreement with experimental findings.
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Affiliation(s)
- Jonathan C. Golec
- Department of ChemistryChemistry Research LaboratoryUniversity of OxfordMansfield RoadOxfordOX1 3TAUK
| | - Eve M. Carter
- Department of ChemistryChemistry Research LaboratoryUniversity of OxfordMansfield RoadOxfordOX1 3TAUK
| | - John W. Ward
- Leverhulme Research Centre for Functional Materials DesignThe Materials Innovation FactoryDepartment of ChemistryUniversity of LiverpoolLiverpoolL7 3NYUK
| | | | - Luis Simón
- Facultad de Ciencias QuímicasUniversidad de SalamancaPlaza de los Caídos 1–537008SalamancaSpain
| | - Robert S. Paton
- Department of ChemistryColorado State University1301 Center AveFt. CollinsCO80523-1872USA
| | - Darren J. Dixon
- Department of ChemistryChemistry Research LaboratoryUniversity of OxfordMansfield RoadOxfordOX1 3TAUK
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18
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Sun C, Qi X, Min XL, Bai XD, Liu P, He Y. Asymmetric allylic substitution-isomerization to axially chiral enamides via hydrogen-bonding assisted central-to-axial chirality transfer. Chem Sci 2020; 11:10119-10126. [PMID: 34094274 PMCID: PMC8162293 DOI: 10.1039/d0sc02828b] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Axially chiral enamides bearing a N–C axis have been recently studied and were proposed to be valuable chiral building blocks, but a stereoselective synthesis has not been achieved. Here, we report the first enantioselective synthesis of axially chiral enamides via a highly efficient, catalytic approach. In this approach, C(sp2)–N bond formation is achieved through an iridium-catalyzed asymmetric allylation, and then in situ isomerization of the initial products through an organic base promoted 1,3-H transfer, leading to the enamide products with excellent central-to-axial transfer of chirality. Computational and experimental studies revealed that the 1,3-H transfer occurs via a stepwise deprotonation/re-protonation pathway with a chiral ion-pair intermediate. Hydrogen bonding interactions with the enamide carbonyl play a significant role in promoting both the reactivity and stereospecificity of the stepwise 1,3-H transfer. The mild and operationally simple formal N-vinylation reaction delivered a series of configurationally stable axially chiral enamides with good to excellent yields and enantioselectivities. Axially chiral enamides bearing a N–C axis have been recently studied and were proposed to be valuable chiral building blocks, but a stereoselective synthesis has not been achieved.![]()
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Affiliation(s)
- Chao Sun
- School of Chemical Engineering, Nanjing University of Science & Technology Nanjing 210094 China
| | - Xiaotian Qi
- Department of Chemistry, University of Pittsburgh Pittsburgh Pennsylvania 15260 USA
| | - Xiao-Long Min
- School of Chemical Engineering, Nanjing University of Science & Technology Nanjing 210094 China
| | - Xue-Dan Bai
- School of Chemical Engineering, Nanjing University of Science & Technology Nanjing 210094 China
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh Pittsburgh Pennsylvania 15260 USA .,Department of Chemical and Petroleum Engineering, University of Pittsburgh Pittsburgh Pennsylvania 15261 USA
| | - Ying He
- School of Chemical Engineering, Nanjing University of Science & Technology Nanjing 210094 China
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19
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Golec JC, Carter EM, Ward JW, Whittingham WG, Simón L, Paton RS, Dixon DJ. BIMP‐Catalyzed 1,3‐Prototropic Shift for the Highly Enantioselective Synthesis of Conjugated Cyclohexenones. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006202] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Jonathan C. Golec
- Department of Chemistry Chemistry Research Laboratory University of Oxford Mansfield Road Oxford OX1 3TA UK
| | - Eve M. Carter
- Department of Chemistry Chemistry Research Laboratory University of Oxford Mansfield Road Oxford OX1 3TA UK
| | - John W. Ward
- Leverhulme Research Centre for Functional Materials Design The Materials Innovation Factory Department of Chemistry University of Liverpool Liverpool L7 3NY UK
| | | | - Luis Simón
- Facultad de Ciencias Químicas Universidad de Salamanca Plaza de los Caídos 1–5 37008 Salamanca Spain
| | - Robert S. Paton
- Department of Chemistry Colorado State University 1301 Center Ave Ft. Collins CO 80523-1872 USA
| | - Darren J. Dixon
- Department of Chemistry Chemistry Research Laboratory University of Oxford Mansfield Road Oxford OX1 3TA UK
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20
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Calvert MB, Furkert DP, Cooper CB, Brimble MA. Synthetic approaches towards bedaquiline and its derivatives. Bioorg Med Chem Lett 2020; 30:127172. [PMID: 32291133 DOI: 10.1016/j.bmcl.2020.127172] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/04/2020] [Accepted: 04/04/2020] [Indexed: 01/11/2023]
Abstract
Bedaquiline is a diarylquinoline drug that demonstrates potent and selective inhibition of mycobacterial ATP synthase, and is clinically administered for the treatment of multi-drug resistant tuberculosis. Due to its excellent activity and novel mechanism of action, bedaquiline has been the focus of a number of synthetic studies. This review will discuss these synthetic approaches, as well as the synthesis and bioactivity of the numerous derivatives and molecular probes inspired by bedaquiline.
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Affiliation(s)
- Matthew B Calvert
- School of Chemical Sciences, The University of Auckland, Symonds Street, Auckland 1010, New Zealand
| | - Daniel P Furkert
- School of Chemical Sciences, The University of Auckland, Symonds Street, Auckland 1010, New Zealand; Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, Symonds Street, Auckland 1010, New Zealand
| | - Christopher B Cooper
- Global Alliance for TB Drug Development, 40 Wall Street, New York, NY 10005, USA
| | - Margaret A Brimble
- School of Chemical Sciences, The University of Auckland, Symonds Street, Auckland 1010, New Zealand; Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, Symonds Street, Auckland 1010, New Zealand.
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21
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Lubanyana H, Arvidsson PI, Govender T, Kruger HG, Naicker T. Improved Synthesis and Isolation of Bedaquiline. ACS OMEGA 2020; 5:3607-3611. [PMID: 32118176 PMCID: PMC7045498 DOI: 10.1021/acsomega.9b04037] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 01/10/2020] [Indexed: 05/02/2023]
Abstract
Bedaquiline (BDQ) is the most critical pharmaceutical in the world for treating multidrug-resistant Mycobacterium tuberculosis. Despite it being highly effective, BDQ asymmetric synthesis remains a challenge. Herein, the influence of chiral bases, namely, bis(1-phenylethyl)amine, bisoxazoline, and sparteine on the diastereoselective lithiation reaction to obtain BDQ was investigated. The highest diastereoselective ratio (dr) emerged as 90:10 from the (+)-bis[(R)-1-phenylethyl] lithium amide. This is a significant improvement from the 50:50 dr achieved from the commercial synthesis. Thereafter, the desired (90:10 RS, SR) diastereomeric mixture was easily isolated via a gravity column and subjected to chiral supercritical fluid chromatography (SFC) to access the desired enantiomer (1R, 2S)-BDQ. The advantages of this procedure are enhanced diastereoselection as well as a greener, faster way to achieve excellent enantioseparation (up to 1.0 g scale).
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Affiliation(s)
- Hlengekile Lubanyana
- Catalysis
and Peptide Research Unit, University of
KwaZulu-Natal, Durban 4000, South Africa
| | - Per I. Arvidsson
- Catalysis
and Peptide Research Unit, University of
KwaZulu-Natal, Durban 4000, South Africa
- Science
for Life Laboratory, Drug Discovery & Development Platform &
Division of Translational Medicine, and Chemical Biology, Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm 17177, Sweden
| | - Thavendran Govender
- Catalysis
and Peptide Research Unit, University of
KwaZulu-Natal, Durban 4000, South Africa
| | - Hendrik G. Kruger
- Catalysis
and Peptide Research Unit, University of
KwaZulu-Natal, Durban 4000, South Africa
| | - Tricia Naicker
- Catalysis
and Peptide Research Unit, University of
KwaZulu-Natal, Durban 4000, South Africa
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22
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Ray Choudhury A, Mukherjee S. Deconjugated butenolide: a versatile building block for asymmetric catalysis. Chem Soc Rev 2020; 49:6755-6788. [PMID: 32785345 DOI: 10.1039/c9cs00346k] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Deconjugated butenolides have emerged as a popular synthon for the enantioselective synthesis of γ-lactones. This review provides a comprehensive overview on the catalytic asymmetric reactions of deconjugated butenolides reported till date.
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Affiliation(s)
| | - Santanu Mukherjee
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore 560 012
- India
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23
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Zhang J, Wang L, Xiang J, Cui J, Hu B, Yang L, Tang Y. HOAc‐Assisted Synthesis of 2,3‐Disubstituted Quinolines from Arylamine and Aliphatic Aldehyde in Water. ChemistrySelect 2019. [DOI: 10.1002/slct.201901686] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jing‐Tao Zhang
- Key Laboratory for Environmentally Friendly Chemistry and ApplicationDepartment of ChemistryXiangtan University Hunan 411105 P. R. China
- Beijing National Laboratory for Molecular Sciences (BNLMS)Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
| | - Li–Xia Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS)Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
| | - Jun‐Feng Xiang
- Beijing National Laboratory for Molecular Sciences (BNLMS)Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
| | - Jie Cui
- Beijing National Laboratory for Molecular Sciences (BNLMS)Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
| | - Ben‐Quan Hu
- Key Laboratory for Environmentally Friendly Chemistry and ApplicationDepartment of ChemistryXiangtan University Hunan 411105 P. R. China
| | - Luo Yang
- Key Laboratory for Environmentally Friendly Chemistry and ApplicationDepartment of ChemistryXiangtan University Hunan 411105 P. R. China
| | - Ya‐Lin Tang
- Beijing National Laboratory for Molecular Sciences (BNLMS)Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
- University of the Chinese Academy of Sciences Beijing 100049 PR China
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24
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Wakade SB, Tiwari DK, Phanindrudu M, Pushpendra, Tiwari DK. Synthesis of 3-keto-quinolines from enaminones, anilines and DMSO: Transition metal free one pot cascade. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.06.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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25
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Rao MS, Sarkar S, Hussain S. Microwave-assisted synthesis of 3-aminoarylquinolines from 2-nitrobenzaldehyde and indole via SnCl2-mediated reduction and facile indole ring opening. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Matsumoto A, Asano K, Matsubara S. Kinetic Resolution of Acylsilane Cyanohydrins via Organocatalytic Cycloetherification. Chem Asian J 2019; 14:116-120. [PMID: 30408346 DOI: 10.1002/asia.201801600] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 11/07/2018] [Indexed: 12/15/2022]
Abstract
An asymmetric cyanation of acylsilanes involving the in-situ formation of chiral acylsilane cyanohydrins followed by their kinetic resolution via organocatalytic cycloetherification is described. The highly enantio- and diastereoselective cycloetherification was crucial for achieving a high efficiency in the kinetic resolution. Consequently, acylsilane cyanohydrins containing a tetrasubstituted chiral carbon atom bearing silyl, cyano, and hydroxy groups were obtained in an enantioenriched form. This protocol therefore offers an efficient catalytic approach to optically active acylsilane cyanohydrins, which exhibit potential as chiral building blocks for the synthesis of pharmaceutically relevant chiral organosilanes.
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Affiliation(s)
- Akira Matsumoto
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo, Kyoto, 615-8510, Japan
| | - Keisuke Asano
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo, Kyoto, 615-8510, Japan
| | - Seijiro Matsubara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo, Kyoto, 615-8510, Japan
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27
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Rode HB, Lade DM, Grée R, Mainkar PS, Chandrasekhar S. Strategies towards the synthesis of anti-tuberculosis drugs. Org Biomol Chem 2019; 17:5428-5459. [DOI: 10.1039/c9ob00817a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this report, we reviewed the strategies towards the synthesis of anti-tuberculosis drugs. They include semisynthetic approaches, resolution based strategies, microbial transformations, solid phase synthesis, and asymmetric synthesis.
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Affiliation(s)
- Haridas B. Rode
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Dhanaji M. Lade
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - René Grée
- University of Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes)
- UMR 6226
- F-35000 Rennes
| | - Prathama S. Mainkar
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Srivari Chandrasekhar
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
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28
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Ascough DMH, Duarte F, Paton RS. Stereospecific 1,3-H Transfer of Indenols Proceeds via Persistent Ion-Pairs Anchored by NH···π Interactions. J Am Chem Soc 2018; 140:16740-16748. [PMID: 30338998 DOI: 10.1021/jacs.8b09874] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The base-catalyzed rearrangement of arylindenols is a rare example of a suprafacial [1,3]-hydrogen atom transfer. The mechanism has been proposed to proceed via sequential [1,5]-sigmatropic shifts, which occur in a selective sense and avoid an achiral intermediate. A computational analysis using quantum chemistry casts serious doubt on these suggestions: These pathways have enormous activation barriers, and in constrast to what is observed experimentally, they overwhelmingly favor a racemic product. Instead we propose that a suprafacial [1,3]-prototopic shift occurs in a two-step deprotonation/reprotonation sequence. This mechanism is favored by 15 kcal mol-1 over that previously proposed. Most importantly, this is also consistent with stereospecificity since reprotonation occurs rapidly on the same π-face. We have used explicitly solvated molecular dynamics studies to study the persistence and condensed-phase dynamics of the intermediate ion-pair formed in this reaction. Chirality transfer is the result of a particularly resilient contact ion-pair, held together by electrostatic attraction and a critical NH···π interaction which ensures that this species has an appreciable lifetime even in polar solvents such as DMSO and MeOH.
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Affiliation(s)
- David M H Ascough
- Chemistry Research Laboratory , University of Oxford , 12 Mansfield Road , Oxford OX1 3TA , United Kingdom
| | - Fernanda Duarte
- Chemistry Research Laboratory , University of Oxford , 12 Mansfield Road , Oxford OX1 3TA , United Kingdom
| | - Robert S Paton
- Department of Chemistry , Colorado State University , Fort Collins , Colorado 80523 , United States.,Chemistry Research Laboratory , University of Oxford , 12 Mansfield Road , Oxford OX1 3TA , United Kingdom
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29
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Phanindrudu M, Wakade SB, Tiwari DK, Likhar PR, Tiwari DK. Transition-Metal-Free Approach for the Synthesis of 4-Aryl-quinolines from Alkynes and Anilines. J Org Chem 2018; 83:9137-9143. [DOI: 10.1021/acs.joc.8b01204] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Mandalaparthi Phanindrudu
- Division of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific & Innovative Research (AcSIR), New Delhi 110001, India
| | - Sandip Balasaheb Wakade
- Division of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific & Innovative Research (AcSIR), New Delhi 110001, India
| | - Dipak Kumar Tiwari
- Division of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific & Innovative Research (AcSIR), New Delhi 110001, India
| | - Pravin R. Likhar
- Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific & Innovative Research (AcSIR), New Delhi 110001, India
| | - Dharmendra Kumar Tiwari
- Division of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific & Innovative Research (AcSIR), New Delhi 110001, India
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30
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Yu LZ, Wei HZ, Shi M. Base-Catalyzed Cascade Reaction of ortho
-(Propargylamino)aryl Ketones with N-, O-, or S-Based Nucleophiles for the Synthesis of 3-Functionalized Quinoline Scaffolds. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800120] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Liu-Zhu Yu
- State Key Laboratory of Organometallic Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Science; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 People's Republic of China
| | - Hao-Zhao Wei
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 People's Republic of China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Science; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 People's Republic of China
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 People's Republic of China
- State Key Laboratory and Institute of Elemento-organic Chemistry; Nankai University; Tianjin 300071 People's Republic of China
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31
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Priebbenow DL, Barbaro L, Baell JB. New synthetic approaches towards analogues of bedaquiline. Org Biomol Chem 2018; 14:9622-9628. [PMID: 27714257 DOI: 10.1039/c6ob01893a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Multi-drug resistant tuberculosis (MDR-TB) is of growing global concern and threatens to undermine increasing efforts to control the worldwide spread of tuberculosis (TB). Bedaquiline has recently emerged as a new drug developed to specifically treat MDR-TB. Despite being highly effective as a result of its unique mode of action, bedaquiline has been associated with significant toxicities and as such, safety concerns are limiting its clinical use. In order to access pharmaceutical agents that exhibit an improved safety profile for the treatment of MDR-TB, new synthetic pathways to facilitate the preparation of bedaquiline and analogues thereof have been discovered.
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Affiliation(s)
- Daniel L Priebbenow
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia.
| | - Lisa Barbaro
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia.
| | - Jonathan B Baell
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia.
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32
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Ao J, Liu Y, Jia S, Xue L, Li D, Tan Y, Qin W, Yan H. Acid-promoted furan annulation and aromatization: An access to benzo[ b ]furan derivatives. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.11.049] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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33
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Tong AST, Choi PJ, Blaser A, Sutherland HS, Tsang SKY, Guillemont J, Motte M, Cooper CB, Andries K, Van den Broeck W, Franzblau SG, Upton AM, Denny WA, Palmer BD, Conole D. 6-Cyano Analogues of Bedaquiline as Less Lipophilic and Potentially Safer Diarylquinolines for Tuberculosis. ACS Med Chem Lett 2017; 8:1019-1024. [PMID: 29057044 PMCID: PMC5642017 DOI: 10.1021/acsmedchemlett.7b00196] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 09/22/2017] [Indexed: 12/26/2022] Open
Abstract
![]()
Bedaquiline (1) is a
new drug for tuberculosis and the first of the diarylquinoline class.
It demonstrates excellent efficacy against TB but induces phospholipidosis
at high doses, has a long terminal elimination half-life (due to its
high lipophilicity), and exhibits potent hERG channel inhibition,
resulting in clinical QTc interval prolongation. A number of structural
ring A analogues of bedaquiline have been prepared and evaluated for
their anti-M.tb activity (MIC90), with
a view to their possible application as less lipophilic second generation
compounds. It was previously observed that a range of 6-substituted
analogues of 1 demonstrated a positive correlation between
potency (MIC90) toward M.tb and drug lipophilicity.
Contrary to this trend, we discovered, by virtue of a clogP/M.tb score, that a 6-cyano (CN) substituent provides a substantial
reduction in lipophilicity with only modest effects on MIC values,
suggesting this substituent as a useful tool in the search for effective
and safer analogues of 1.
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Affiliation(s)
- Amy S. T. Tong
- Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Peter J. Choi
- Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Adrian Blaser
- Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Hamish S. Sutherland
- Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Sophia K. Y. Tsang
- Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Jerome Guillemont
- Medicinal Chemistry
Department (Infectious Diseases), Janssen Pharmaceuticals, Campus
de Maigremont, BP315, 27106 Val de Reuil Cedex, France
| | - Magali Motte
- Medicinal Chemistry
Department (Infectious Diseases), Janssen Pharmaceuticals, Campus
de Maigremont, BP315, 27106 Val de Reuil Cedex, France
| | - Christopher B. Cooper
- Global Alliance for TB Drug Development, 40 Wall Street, New York, New York 10005, United States
| | - Koen Andries
- Infectious Diseases BVBA, Janssen Pharmaceuticals, Beerse, Belgium
| | | | - Scott G. Franzblau
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612, United States
| | - Anna M. Upton
- Global Alliance for TB Drug Development, 40 Wall Street, New York, New York 10005, United States
| | - William A. Denny
- Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Brian D. Palmer
- Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Daniel Conole
- Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
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34
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Wakade SB, Tiwari DK, Ganesh PSKP, Phanindrudu M, Likhar PR, Tiwari DK. Transition-Metal-Free Quinoline Synthesis from Acetophenones and Anthranils via Sequential One-Carbon Homologation/Conjugate Addition/Annulation Cascade. Org Lett 2017; 19:4948-4951. [DOI: 10.1021/acs.orglett.7b02429] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sandip Balasaheb Wakade
- Medicinal
Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific & Innovative Research (AcSIR), New Delhi 110001, India
| | - Dipak Kumar Tiwari
- Medicinal
Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific & Innovative Research (AcSIR), New Delhi 110001, India
| | | | - Mandalaparthi Phanindrudu
- Medicinal
Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific & Innovative Research (AcSIR), New Delhi 110001, India
| | - Pravin R. Likhar
- Academy of Scientific & Innovative Research (AcSIR), New Delhi 110001, India
| | - Dharmendra Kumar Tiwari
- Medicinal
Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific & Innovative Research (AcSIR), New Delhi 110001, India
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35
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Liu TL, Ng TW, Zhao Y. Rhodium-Catalyzed Enantioselective Isomerization of Secondary Allylic Alcohols. J Am Chem Soc 2017; 139:3643-3646. [DOI: 10.1021/jacs.7b01096] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Tang-Lin Liu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Republic of Singapore 117543
| | - Teng Wei Ng
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Republic of Singapore 117543
| | - Yu Zhao
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Republic of Singapore 117543
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36
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Chen B, Cao P, Yin X, Liao Y, Jiang L, Ye J, Wang M, Liao J. Modular Synthesis of Enantioenriched 1,1,2-Triarylethanes by an Enantioselective Arylboration and Cross-Coupling Sequence. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00300] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Bin Chen
- College
of Chemical Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
| | - Peng Cao
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
| | - Xuemei Yin
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
| | - Yang Liao
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
| | - Liyin Jiang
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
| | - Jialin Ye
- College
of Chemical Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
| | - Min Wang
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
| | - Jian Liao
- College
of Chemical Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
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37
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He C, Preiss L, Wang B, Fu L, Wen H, Zhang X, Cui H, Meier T, Yin D. Structural Simplification of Bedaquiline: the Discovery of 3-(4-(N,N-Dimethylaminomethyl)phenyl)quinoline-Derived Antitubercular Lead Compounds. ChemMedChem 2016; 12:106-119. [PMID: 27792278 PMCID: PMC5298006 DOI: 10.1002/cmdc.201600441] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Indexed: 01/03/2023]
Abstract
Bedaquiline (BDQ) is a novel and highly potent last-line antituberculosis drug that was approved by the US FDA in 2013. Owing to its stereo-structural complexity, chemical synthesis and compound optimization are rather difficult and expensive. This study describes the structural simplification of bedaquiline while preserving antitubercular activity. The compound's structure was split into fragments and reassembled in various combinations while replacing the two chiral carbon atoms with an achiral linkage instead. Four series of analogues were designed; these candidates retained their potent antitubercular activity at sub-microgram per mL concentrations against both sensitive and multidrug-resistant (MDR) Mycobacterium tuberculosis strains. Six out of the top nine MIC-ranked candidates were found to inhibit mycobacterial ATP synthesis activity with IC50 values between 20 and 40 μm, one had IC50 >66 μm, and two showed no inhibition, despite their antitubercular activity. These results provide a basis for the development of chemically less complex, lower-cost bedaquiline derivatives and describe the identification of two derivatives with antitubercular activity against non-ATP synthase related targets.
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Affiliation(s)
- Chunxian He
- State Key Laboratory of Bioactive Substances and Function ofNatural Medicine, Institute of Materia Medica, Peking Union Medical College andChinese Academy of Medical Sciences, Beijing, 100050, China.,Beijing Key Laboratory of Active Substances Discovery and DrugabilityEvaluation, Institute of Materia Medica, Peking Union Medical College andChinese Academy of Medical Sciences, Beijing, 100050, China
| | - Laura Preiss
- Department of Structural Biology, Max Planck Institute of Biophysics, Max-von-Laue-Str. 3, 60438, Frankfurt am Main, Germany
| | - Bin Wang
- Department of Pharmacology, Beijing Tuberculosis and Thoracic TumorResearch Institute, Beijing Chest Hospital, Capital Medical University, 97 Ma Chang Street, Beijing, 101149, China
| | - Lei Fu
- Department of Pharmacology, Beijing Tuberculosis and Thoracic TumorResearch Institute, Beijing Chest Hospital, Capital Medical University, 97 Ma Chang Street, Beijing, 101149, China
| | - Hui Wen
- Beijing Key Laboratory of Active Substances Discovery and DrugabilityEvaluation, Institute of Materia Medica, Peking Union Medical College andChinese Academy of Medical Sciences, Beijing, 100050, China
| | - Xiang Zhang
- Beijing Key Laboratory of Active Substances Discovery and DrugabilityEvaluation, Institute of Materia Medica, Peking Union Medical College andChinese Academy of Medical Sciences, Beijing, 100050, China
| | - Huaqing Cui
- Beijing Key Laboratory of Active Substances Discovery and DrugabilityEvaluation, Institute of Materia Medica, Peking Union Medical College andChinese Academy of Medical Sciences, Beijing, 100050, China
| | - Thomas Meier
- Department of Structural Biology, Max Planck Institute of Biophysics, Max-von-Laue-Str. 3, 60438, Frankfurt am Main, Germany.,Department of Life Sciences, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Dali Yin
- State Key Laboratory of Bioactive Substances and Function ofNatural Medicine, Institute of Materia Medica, Peking Union Medical College andChinese Academy of Medical Sciences, Beijing, 100050, China
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38
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39
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Douša M, Reitmajer J, Lustig P, Štefko M. Effect of Chromatographic Conditions on Enantioseparation of Bedaquiline Using Polysaccharide-based Chiral Stationary Phases in RP-HPLC. J Chromatogr Sci 2016; 54:1501-1507. [DOI: 10.1093/chromsci/bmw050] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 01/27/2016] [Indexed: 11/13/2022]
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40
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Qiao CJ, Wang XK, Xie F, Zhong W, Li S. Asymmetric Synthesis and Absolute Configuration Assignment of a New Type of Bedaquiline Analogue. Molecules 2015; 20:22272-85. [PMID: 26690407 PMCID: PMC6331863 DOI: 10.3390/molecules201219846] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 12/04/2015] [Accepted: 12/07/2015] [Indexed: 12/02/2022] Open
Abstract
Bedaquiline is the first FDA-approved new chemical entity to fight multidrug-resistant tuberculosis in the last forty years. Our group replaced the quinoline ring with a naphthalene ring, leading to a new type of triarylbutanol skeleton. An asymmetric synthetic route was established for our bedaquiline analogues, and the goal of assigning their absolute configurations was achieved by comparison of experimental and calculated electronic circular dichroism spectra, and was confirmed by the combined use of circular dichroism and NMR spectroscopy.
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Affiliation(s)
- Chang-Jiang Qiao
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China.
- Laboratory of Computer-Aided Drug Design & Discovery, Beijing Institute of Pharmacology and Toxicology, 27 Taiping Road, Beijing 100850, China.
| | - Xiao-Kui Wang
- Laboratory of Computer-Aided Drug Design & Discovery, Beijing Institute of Pharmacology and Toxicology, 27 Taiping Road, Beijing 100850, China.
| | - Fei Xie
- Laboratory of Computer-Aided Drug Design & Discovery, Beijing Institute of Pharmacology and Toxicology, 27 Taiping Road, Beijing 100850, China.
| | - Wu Zhong
- Laboratory of Computer-Aided Drug Design & Discovery, Beijing Institute of Pharmacology and Toxicology, 27 Taiping Road, Beijing 100850, China.
| | - Song Li
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China.
- Laboratory of Computer-Aided Drug Design & Discovery, Beijing Institute of Pharmacology and Toxicology, 27 Taiping Road, Beijing 100850, China.
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41
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Kong DL, Huang Y, Ren LY, Feng WH. A highly efficient way to recycle inactive stereoisomers of Bedaquiline into two previous intermediates via base-catalyzed Csp3Csp3 bond cleavage. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2015.04.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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42
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Bharate JB, Abbat S, Sharma R, Bharatam PV, Vishwakarma RA, Bharate SB. Cobalt(ii) catalyzed C(sp)–H bond functionalization of alkynes with phenyl hydrazines: facile access to diaryl 1,2-diketones. Org Biomol Chem 2015; 13:5235-42. [DOI: 10.1039/c5ob00419e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A cobalt acetylacetonate catalyzed oxidative diketonation of alkynes via C(sp)–H bond functionalization has been described. Its application to the synthesis of imidazoles has also been demonstrated.
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Affiliation(s)
- Jaideep B. Bharate
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Sheenu Abbat
- Departments of Pharmacoinformatics and Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- SAS Nagar
- India
| | - Rohit Sharma
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Prasad V. Bharatam
- Departments of Pharmacoinformatics and Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- SAS Nagar
- India
| | - Ram A. Vishwakarma
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Sandip B. Bharate
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific & Innovative Research (AcSIR)
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43
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44
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Jung ME, Deng G. Synthesis of α-diketones from alkylaryl- and diarylalkynes using mercuric salts. Org Lett 2014; 16:2142-5. [PMID: 24684513 PMCID: PMC4316994 DOI: 10.1021/ol500592m] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Indexed: 01/18/2023]
Abstract
Both alkylarylalkynes and diarylalkynes 1 are converted into the α-diketones 2 in good yield by the use of mercuric salts, e.g., mercuric nitrate hydrate or mercuric triflate, in the presence of water. Other mercuric salts, e.g., sulfate, chloride, acetate, or trifluoroacetate, do not provide the diketone product. A possible mechanism is proposed.
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Affiliation(s)
- Michael E. Jung
- Department
of Chemistry and
Biochemistry, University of California,
Los Angeles, 405 Hilgard
Avenue, Los Angeles, California 90095, United States
| | - Gang Deng
- Department
of Chemistry and
Biochemistry, University of California,
Los Angeles, 405 Hilgard
Avenue, Los Angeles, California 90095, United States
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45
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Synthetic approaches to the 2012 new drugs. Bioorg Med Chem 2014; 22:2005-32. [DOI: 10.1016/j.bmc.2014.02.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 02/11/2014] [Accepted: 02/13/2014] [Indexed: 12/19/2022]
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46
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Fox GJ, Menzies D. A Review of the Evidence for Using Bedaquiline (TMC207) to Treat Multi-Drug Resistant Tuberculosis. Infect Dis Ther 2013; 2:123-44. [PMID: 25134476 PMCID: PMC4108107 DOI: 10.1007/s40121-013-0009-3] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Indexed: 12/20/2022] Open
Abstract
Existing therapies for multi-drug resistant tuberculosis (MDR-TB) have substantial limitations, in terms of their effectiveness, side-effect profile, and complexity of administration. Bedaquiline is a novel diarylquinoline antibiotic that has recently been investigated as an adjunct to existing therapies for MDR-TB. Currently, limited clinical data are available to evaluate the drug’s safety and effectiveness. In two small randomized-controlled clinical studies, bedaquiline given for 8 or 24 weeks has been shown to improve surrogate microbiological markers of treatment response, but trials have not yet evaluated its impact on clinical failure and relapse. Safety concerns include an increased mortality in the bedaquiline arm of one study, an increased incidence of QT segment prolongation on electrocardiogram, and hepatotoxicity. Until further research data are available, the use of bedaquiline should be confined to settings where carefully selected patients can be closely monitored.
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Affiliation(s)
- Gregory J. Fox
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, 3650 St. Urbain Street, Montreal, PQ H2X 2P4 Canada
| | - Dick Menzies
- Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, 3650 St. Urbain Street, Montreal, PQ H2X 2P4 Canada
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47
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Kawai J, Chikkade PK, Shimizu Y, Kanai M. In situ Catalytic Generation of Allylcopper Species for Asymmetric Allylation: Toward 1H-Isochromene Skeletons. Angew Chem Int Ed Engl 2013; 52:7177-80. [DOI: 10.1002/anie.201302027] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 04/22/2013] [Indexed: 11/11/2022]
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48
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Kawai J, Chikkade PK, Shimizu Y, Kanai M. In situ Catalytic Generation of Allylcopper Species for Asymmetric Allylation: Toward 1H-Isochromene Skeletons. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302027] [Citation(s) in RCA: 12] [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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49
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Xue XS, Li X, Yu A, Yang C, Song C, Cheng JP. Mechanism and Selectivity of Bioinspired Cinchona Alkaloid Derivatives Catalyzed Asymmetric Olefin Isomerization: A Computational Study. J Am Chem Soc 2013; 135:7462-73. [DOI: 10.1021/ja309133z] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Xiao-Song Xue
- State
Key Laboratory of Elemento-Organic Chemistry, §Computational Center of Molecular
Science, and ‡Central Laboratory, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xin Li
- State
Key Laboratory of Elemento-Organic Chemistry, §Computational Center of Molecular
Science, and ‡Central Laboratory, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ao Yu
- State
Key Laboratory of Elemento-Organic Chemistry, §Computational Center of Molecular
Science, and ‡Central Laboratory, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Chen Yang
- State
Key Laboratory of Elemento-Organic Chemistry, §Computational Center of Molecular
Science, and ‡Central Laboratory, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Chan Song
- State
Key Laboratory of Elemento-Organic Chemistry, §Computational Center of Molecular
Science, and ‡Central Laboratory, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jin-Pei Cheng
- State
Key Laboratory of Elemento-Organic Chemistry, §Computational Center of Molecular
Science, and ‡Central Laboratory, College of Chemistry, Nankai University, Tianjin 300071, China
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50
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Yus M, González-Gómez JC, Foubelo F. Diastereoselective Allylation of Carbonyl Compounds and Imines: Application to the Synthesis of Natural Products. Chem Rev 2013; 113:5595-698. [DOI: 10.1021/cr400008h] [Citation(s) in RCA: 398] [Impact Index Per Article: 36.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Miguel Yus
- Departamento de Química
Orgánica, Facultad
de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante,
Spain
| | - José C. González-Gómez
- Departamento de Química
Orgánica, Facultad
de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante,
Spain
| | - Francisco Foubelo
- Departamento de Química
Orgánica, Facultad
de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante,
Spain
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