1
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Khushboo, Singhvi N, Gupta V, Dhaka N, Dubey KK. Draft genome sequence of Streptomyces sp. KD18, isolated from industrial soil. 3 Biotech 2023; 13:34. [PMID: 36619820 PMCID: PMC9810780 DOI: 10.1007/s13205-022-03453-3] [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: 10/21/2022] [Accepted: 12/24/2022] [Indexed: 01/05/2023] Open
Abstract
The present study scrutinizes the presence of Streptomyces strains in the soil sample collected from industrial area of Bahadurgarh (Haryana) India. The morphological approach manifested the isolated strain belong to Streptomyces species and named as Streptomyces sp. KD18. Sequencing of Streptomyces sp. KD18 genome was performed by Illumina Nextseq500 platform. 65 contigs were generated via SPAdes v3.11.1 and harboured genome size of 7.2 Mb. AntiSMASH server revealed the presence of 25 biosynthetic gene clusters in KD18 genome where BGC of lipstatin was of more interest from industrial and pharmaceutical purpose. The draft genome sequence represented via ANI values claimed that the KD18 strain belongs to Streptomyces toxytricini and finally named as S. toxytricini KD18. The LC-MS analysis of the extracted metabolite confirmed the production of lipstatin. The genome sequence data have been deposited to NCBI under the accession number of GCA_014748315.1. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03453-3.
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Affiliation(s)
- Khushboo
- Department of Biotechnology, Central University of Haryana, Mahendergarh, 123031 India
| | - Nirjara Singhvi
- School of Allied Sciences, Dev Bhoomi Uttarakhand University, Dehradun, Uttarakhand 248007 India
| | - Vipin Gupta
- Ministry of Environment, Forest and Climate Change, Integrated Regional Office, Dehradun, Uttarakhand 248001 India
| | - Namrata Dhaka
- Department of Biotechnology, Central University of Haryana, Mahendergarh, 123031 India
| | - Kashyap Kumar Dubey
- Bioprocess Engineering Laboratory, School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067 India
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2
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The Alkyne Zipper Reaction: A Useful Tool in Synthetic Chemistry. REACTIONS 2022. [DOI: 10.3390/reactions4010002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The alkyne zipper reaction is an internal-to-terminal alkyne isomerization reaction with many interesting applications in synthetic chemistry, as it constitutes an efficient means of achieving acetylene functionalization. A review of its applications in synthesis processes is presented in this paper, with a brief overview of the mechanistic features of the alkyne zipper reaction, as well as a brief overview of its future potential.
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3
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Liu X, Chen C, Yuan H, Tang X, Jiang R, Gao Y, Nie H. Double Asymmetric Hydrogenation of (E)‐2‐Substituted‐4‐oxo‐2‐alkenoic Acids: An Efficient Synthesis of Chiral α, γ‐Disubstituted γ‐Butyrolactones. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xian Liu
- Beijing Institute of Radiation Medicine School of Pharmacy Taiping Road 710032 Xi'an CHINA
| | - Cheng Chen
- Chinese PLA General Hospital The second medical center CHINA
| | - Haohuan Yuan
- Air Force Medical University School of Pharmacy CHINA
| | - Xianglin Tang
- Beijing Institute of Radiation Medicine School of Pharmacy CHINA
| | - Ru Jiang
- The Fourth Military Medical University School of Pharmacy 169 Changle West Road 710032 Xian CHINA
| | - Yue Gao
- Beijing Institute of Radiation Medicine Department of Pharmaceutical Sciences CHINA
| | - Huifang Nie
- Air Force Medical University School of Pharmacy CHINA
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4
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Xing Y, O'Doherty GA. De Novo Asymmetric Approach to Aspergillide‐C: Synthesis of 4‐epi‐seco‐Aspergillide‐C. ChemistrySelect 2022. [DOI: 10.1002/slct.202200266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yalan Xing
- Department of Chemistry William Paterson University Wayne New Jersey 07470 USA
| | - George A. O'Doherty
- Department of Chemistry and Chemical Biology Northeastern University 360 Huntington Avenue Boston 02115 USA
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5
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Ma Y, Vemula R, Zhang Q, Wu B, O'Doherty GA. Achmatowicz approach to the asymmetric synthesis of both (+)- and (−)-monanchorin. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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6
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Synthesis of a C-7 Pd-glycosyl-donor via the base promoted alkylative CO2 trapping with 2-acetylfuran. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Deng T, Mazumdar W, Yoshinaga Y, Patel PB, Malo D, Malo T, Wink DJ, Driver TG. Rh 2(II)-Catalyzed Intermolecular N-Aryl Aziridination of Olefins Using Nonactivated N Atom Precursors. J Am Chem Soc 2021; 143:19149-19159. [PMID: 34748699 DOI: 10.1021/jacs.1c09229] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The development of the first intermolecular Rh2(II)-catalyzed aziridination of olefins using anilines as nonactivated N atom precursors and an iodine(III) reagent as the stoichiometric oxidant is reported. This reaction requires the transfer of an N-aryl nitrene fragment from the iminoiodinane intermediate to a Rh2(II) carboxylate catalyst; in the absence of a catalyst only diaryldiazene formation was observed. This N-aryl aziridination is general and can be successfully realized by using as little as 1 equiv of the olefin. Di-, tri-, and tetrasubstituted cyclic or acylic olefins can be employed as substrates, and a range of aniline and heteroarylamine N atom precursors are tolerated. The Rh2(II)-catalyzed N atom transfer to the olefin is stereospecific as well as chemo- and diastereoselective to produce the N-aryl aziridine as the only amination product. Because the chemistry of nonactivated N-aryl aziridines is underexplored, the reactivity of N-aryl aziridines was explored toward a range of nucleophiles to stereoselectively access privileged 1,2-stereodiads unavailable from epoxides, and removal of the N-2,4-dinitrophenyl group was demonstrated to show that functionalized primary amines can be constructed.
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Affiliation(s)
- Tianning Deng
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, MC 111, Chicago, Illinois 60607, United States
| | - Wrickban Mazumdar
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, MC 111, Chicago, Illinois 60607, United States
| | - Yuki Yoshinaga
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, MC 111, Chicago, Illinois 60607, United States
| | - Pooja B Patel
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, MC 111, Chicago, Illinois 60607, United States
| | - Dana Malo
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, MC 111, Chicago, Illinois 60607, United States.,Hinsdale South High School, 7401 Clarendon Hills Road, Darien, Illinois 60561, United States
| | - Tala Malo
- Hinsdale South High School, 7401 Clarendon Hills Road, Darien, Illinois 60561, United States
| | - Donald J Wink
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, MC 111, Chicago, Illinois 60607, United States
| | - Tom G Driver
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, MC 111, Chicago, Illinois 60607, United States
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8
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Khan SS, Sudasinghe TD, Landgraf AD, Ronning DR, Sucheck SJ. Total Synthesis of Tetrahydrolipstatin, Its Derivatives, and Evaluation of Their Ability to Potentiate Multiple Antibiotic Classes against Mycobacterium Species. ACS Infect Dis 2021; 7:2876-2888. [PMID: 34478259 PMCID: PMC8630808 DOI: 10.1021/acsinfecdis.1c00283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tetrahydrolipstatin (THL, 1a) has been shown to inhibit both mammalian and bacterial α/β hydrolases. In the case of bacterial systems, THL is a known inhibitor of several Mycobacterium tuberculosis hydrolases involved in mycomembrane biosynthesis. Herein we report a highly efficient eight-step asymmetric synthesis of THL using a route that allows modification of the THL α-chain substituent to afford compounds 1a through 1e. The key transformation in the synthesis was use of a (TPP)CrCl/Co2(CO)8-catalyzed regioselective and stereospecific carbonylation on an advanced epoxide intermediate to yield a trans-β-lactone. These compounds are modest inhibitors of Ag85A and Ag85C, two α/β hydrolases of M. tuberculosis involved in the biosynthesis of the mycomembrane. Among these compounds, 10d showed the highest inhibitory effect on Ag85A (34 ± 22 μM) and Ag85C (66 ± 8 μM), and its X-ray structure was solved in complex with Ag85C to 2.5 Å resolution. In contrast, compound 1e exhibited the best-in-class MICs of 50 μM (25 μg/mL) and 16 μM (8.4 μg/mL) against M. smegmatis and M. tuberculosis H37Ra, respectively, using a microtiter assay plate. Combination of 1e with 13 well-established antibiotics synergistically enhanced the potency of few of these antibiotics in M. smegmatis and M. tuberculosis H37Ra. Compound 1e applied at concentrations 4-fold lower than its MIC enhanced the MIC of the synergistic antibiotic by 2-256-fold. In addition to observing synergy with first-line drugs, rifamycin and isoniazid, the MIC of vancomycin against M. tuberculosis H37Ra was 65 μg/mL; however, the MIC was lowered to 0.25 μg/mL in the presence of 2.1 μg/mL 1e demonstrating the potential of targeting mycobacterial hydrolases involved in mycomembrane and peptidoglycan biosynthesis.
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Affiliation(s)
- Saniya S Khan
- Department of Chemistry & Biochemistry, University of Toledo, Toledo, Ohio 43606, United States
| | - Thanuja D Sudasinghe
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Alexander D Landgraf
- Department of Chemistry & Biochemistry, University of Toledo, Toledo, Ohio 43606, United States
| | - Donald R Ronning
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Steven J Sucheck
- Department of Chemistry & Biochemistry, University of Toledo, Toledo, Ohio 43606, United States
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9
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Sharif EU, Shi P, O'Doherty GA. Synthesis of
O
‐linked Cyclitol Analogues of Gilvocarcin M and Antibacterial Activity. Isr J Chem 2021. [DOI: 10.1002/ijch.202100015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ehesan U. Sharif
- Department of Chemistry and Chemical Biology Northeastern University Boston MA 02115 US
| | - Pei Shi
- Department of Chemistry and Chemical Biology Northeastern University Boston MA 02115 US
| | - George A. O'Doherty
- Department of Chemistry and Chemical Biology Northeastern University Boston MA 02115 US
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10
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Jung HJ, Cho Y, Kim D, Mehrkhodavandi P. Cationic aluminum, gallium, and indium complexes in catalysis. Catal Sci Technol 2021. [DOI: 10.1039/d0cy01741h] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The introduction of cationic charge allows cationic group 13 complexes to be excellent Lewis acid catalysts. Cationic aluminum, gallium, and indium complexes in catalysis are comprehensively reviewed based on the reaction type.
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Affiliation(s)
- Hyuk-Joon Jung
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Youngjung Cho
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Diana Kim
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
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11
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Hubbell AK, Coates GW. Nucleophilic Transformations of Lewis Acid-Activated Disubstituted Epoxides with Catalyst-Controlled Regioselectivity. J Org Chem 2020; 85:13391-13414. [PMID: 33076663 DOI: 10.1021/acs.joc.0c01691] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Due to their inherent ring strain and electrophilicity, epoxides are highly attractive building blocks for fundamental organic reactions. However, controlling the regioselectivity of disubstituted epoxide transformations is often particularly challenging. Most Lewis acid-mediated processes take advantage of intrinsic steric or electronic substrate bias to influence the site of nucleophilic attack. Therefore, the scope of many of these systems is frequently quite limited. Recent efforts to generate catalysts that can overcome substrate bias have expanded the synthetic utility of these well-known reactions. In this Perspective, we highlight various regioselective transformations of disubstituted epoxides, emphasizing those that have inspired the production of challenging, catalyst-controlled processes.
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Affiliation(s)
- Aran K Hubbell
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Geoffrey W Coates
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
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12
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Abstract
Two formal syntheses and one total synthesis of fostriecin (1) have been achieved, as well as, the synthesis of its related congener dihydro-dephospho-fostriecin. All the routes use the Sharpless dihydroxylation to set the absolute stereochemistry at C-8/9 positions and a Leighton allylation to set the C-5 position of the natural product. In the formal syntheses a Noyori transfer hydrogenation of an ynone was used to set the C-11 position while the total synthesis employed a combination of asymmetric dihydroxylation and Pd-π-allyl reduction to set the C-11 position. Finally in the total synthesis, a trans-hydroboration of the C-12/13 alkyne was used in combination with a Suzuki cross coupling to establish the Z,Z,E-triene of fostriecin (1).
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Affiliation(s)
- Gao Dong
- Department of Chemistry, West Virginia University, Morgantown, WV 26506, US
| | - Bohui Li
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, US
| | - George O'Doherty
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, US
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13
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Enzymatic synthesis of an orlistat intermediate using a mutant short-chain dehydrogenase from Novosphingobium aromaticivorans. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.02.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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14
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Brennan-Krohn T, Manetsch R, O'Doherty GA, Kirby JE. New strategies and structural considerations in development of therapeutics for carbapenem-resistant Enterobacteriaceae. Transl Res 2020; 220:14-32. [PMID: 32201344 PMCID: PMC7293954 DOI: 10.1016/j.trsl.2020.02.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/25/2020] [Accepted: 02/26/2020] [Indexed: 12/12/2022]
Abstract
Antimicrobial resistance poses a significant threat to our ability to treat infections. Especially concerning is the emergence of carbapenem-resistant Enterobacteriaceae (CRE). In the new 2019 United States Centers for Disease Control and Prevention Antibiotic Resistance Report, CRE remain in the most urgent antimicrobial resistance threat category. There is good reason for this concerning designation. In particular, the combination of several resistance elements in CRE can make these pathogens untreatable or effectively untreatable with our current armamentarium of anti-infective agents. This article reviews recently approved agents with activity against CRE and a range of modalities in the pipeline, from early academic investigation to those in clinical trials, with a focus on structural aspects of new antibiotics. Another article in this series addresses the need to incentive pharmaceutical companies to invest in CRE antimicrobial development and to encourage hospitals to make these agents available in their formularies. This article will also consider the need for change in requirements for antimicrobial susceptibility testing implementation in clinical laboratories to address practical roadblocks that impede our efforts to provide even existing CRE antibiotics to our patients.
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Affiliation(s)
- Thea Brennan-Krohn
- Department of Pathology, Beth Israel Deaconess Medical Center, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Division of Infectious Diseases, Boston Children's Hospital, Boston, Massachusetts
| | - Roman Manetsch
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts; Department of Pharmaceutical Sciences, Northeastern University, Boston, Massachusetts
| | | | - James E Kirby
- Department of Pathology, Beth Israel Deaconess Medical Center, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Beth Israel Deaconess Medical Center, Boston, Massachusetts.
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15
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Xu Y, Jiao C, Li J, Tian R, Duan Z, Mathey F. An Approach to Peri-Fused Heterocycles: A Metal-Mediated Cascade Carbonylative Cyclization/Dearomatic Diels–Alder Reaction. Org Lett 2019; 21:9512-9515. [DOI: 10.1021/acs.orglett.9b03698] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yang Xu
- College of Chemistry, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Chenyang Jiao
- College of Chemistry, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Juan Li
- College of Chemistry, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Rongqiang Tian
- College of Chemistry, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Zheng Duan
- College of Chemistry, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - François Mathey
- College of Chemistry, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
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16
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Affiliation(s)
- Carmen Nájera
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, Alicante E-03080, Spain
| | - Leiv K. Sydnes
- Department of Chemistry, University of Bergen, Allégt. 41, Bergen NO-5007, Norway
| | - Miguel Yus
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, Alicante E-03080, Spain
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17
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Aljahdali AZ, Freedman SA, Scott J, Li M, O'Doherty GA. Synthesis and direct comparison of the anticancer activities of phomopsolides D and E and two 7-oxa-/7-aza-analogues. MEDCHEMCOMM 2019; 10:1205-1211. [PMID: 31391894 DOI: 10.1039/c9md00121b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 04/29/2019] [Indexed: 11/21/2022]
Abstract
The synthesis of two stable phomopsolide natural products (D and E) and two analogues is presented. The cytotoxicities of these four compounds are surveyed and compared across a panel of NCI-cancer cell lines. This analysis found moderate cytotoxicities (2-50 μM) for the majority of the cell lines with phomopsolide D being more active than phomopsolide E and the 7-oxa analogue being commensurately more active than the 7-aza analogue.
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Affiliation(s)
| | - Seth A Freedman
- Dept. of Chemistry and Chem. Bio , Northeastern Univ. Boston , MA 02115 , USA .
| | - Jana Scott
- Dept. of Chemistry , Univ. of Minnesota , Minneapolis , MN 55455 , USA
| | - Miaosheng Li
- Dept. of Chemistry , West Virginia Univ. Morgantown , WV 26506 , USA
| | - George A O'Doherty
- Dept. of Chemistry and Chem. Bio , Northeastern Univ. Boston , MA 02115 , USA .
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18
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Cabré A, Cabezas‐Giménez J, Sciortino G, Ujaque G, Verdaguer X, Lledós A, Riera A. Mild Iridium‐Catalysed Isomerization of Epoxides. Computational Insights and Application to the Synthesis of β‐Alkyl Amines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900372] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Albert Cabré
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció Orgànica.Universitat de Barcelona Martí i Franquès 1 Barcelona E-08028 Spain
| | - Juanjo Cabezas‐Giménez
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció Orgànica.Universitat de Barcelona Martí i Franquès 1 Barcelona E-08028 Spain
| | - Giuseppe Sciortino
- Departament de Química, Edifici C.n.Universitat Autònoma de Barcelona Cerdanyola del Vallès 08193 Spain
- Dipt. di Chimica e FarmaciaUniversità di Sassari, via Vienna 2 I-07017 Sassari Italy
| | - Gregori Ujaque
- Departament de Química, Edifici C.n.Universitat Autònoma de Barcelona Cerdanyola del Vallès 08193 Spain
| | - Xavier Verdaguer
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció Orgànica.Universitat de Barcelona Martí i Franquès 1 Barcelona E-08028 Spain
| | - Agustí Lledós
- Departament de Química, Edifici C.n.Universitat Autònoma de Barcelona Cerdanyola del Vallès 08193 Spain
| | - Antoni Riera
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció Orgànica.Universitat de Barcelona Martí i Franquès 1 Barcelona E-08028 Spain
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19
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Ma K, Martin BS, Yin X, Dai M. Natural product syntheses via carbonylative cyclizations. Nat Prod Rep 2019; 36:174-219. [PMID: 29923586 DOI: 10.1039/c8np00033f] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review summarizes the application of various transition metal-catalyzed/mediated carbonylative cyclization reactions in natural product total synthesis.
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Affiliation(s)
- Kaiqing Ma
- Department of Chemistry
- Center for Cancer Research
- Institute for Drug Discovery
- Purdue University
- West Lafayette
| | - Brandon S. Martin
- Department of Chemistry
- Center for Cancer Research
- Institute for Drug Discovery
- Purdue University
- West Lafayette
| | - Xianglin Yin
- Department of Chemistry
- Center for Cancer Research
- Institute for Drug Discovery
- Purdue University
- West Lafayette
| | - Mingji Dai
- Department of Chemistry
- Center for Cancer Research
- Institute for Drug Discovery
- Purdue University
- West Lafayette
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20
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A. O'Doherty G, M. Harris J, Li M. A De Novo Asymmetric Synthesis of Phomopsolide E: A Practical Conversion from Phomopsolide D. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)96] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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23
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Mukherjee S, Biju AT. Recent Advances in the Organocatalytic Enantioselective Synthesis of Functionalized β-Lactones. Chem Asian J 2018; 13:2333-2349. [DOI: 10.1002/asia.201800902] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/20/2018] [Indexed: 01/25/2023]
Affiliation(s)
- Subrata Mukherjee
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune 411008 India
| | - Akkattu T. Biju
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560012 India
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24
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Peng JB, Wu FP, Wu XF. First-Row Transition-Metal-Catalyzed Carbonylative Transformations of Carbon Electrophiles. Chem Rev 2018; 119:2090-2127. [DOI: 10.1021/acs.chemrev.8b00068] [Citation(s) in RCA: 299] [Impact Index Per Article: 49.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jin-Bao Peng
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, People’s Republic of China
| | - Fu-Peng Wu
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, People’s Republic of China
| | - Xiao-Feng Wu
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, People’s Republic of China
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, Rostock 18059, Germany
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25
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Synthesis of the quorum sensing molecule Diffusible Signal Factor using the alkyne zipper reaction. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.04.071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Goins CM, Sudasinghe TD, Liu X, Wang Y, O'Doherty GA, Ronning DR. Characterization of Tetrahydrolipstatin and Stereoderivatives on the Inhibition of Essential Mycobacterium tuberculosis Lipid Esterases. Biochemistry 2018; 57:2383-2393. [PMID: 29601187 DOI: 10.1021/acs.biochem.8b00152] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Tetrahydrolipstatin (THL) is a covalent inhibitor of many serine esterases. In mycobacteria, THL has been found to covalently react with 261 lipid esterases upon treatment of Mycobacterium bovis cell lysate. However, the covalent adduct is considered unstable in some cases because of the hydrolysis of the enzyme-linked THL adduct resulting in catalytic turnover. In this study, a library of THL stereoderivatives was tested against three essential Mycobacterium tuberculosis lipid esterases of interest for drug development to assess how the stereochemistry of THL affects respective enzyme inhibition and allows for cross enzyme inhibition. The mycolyltransferase Antigen 85C (Ag85C) was found to be stereospecific with regard to THL; covalent inhibition occurs within minutes and was previously shown to be irreversible. Conversely, the Rv3802 phospholipase A/thioesterase was more accepting of a variety of THL configurations and uses these compounds as alternative substrates. The reaction of the THL stereoderivatives with the thioesterase domain of polyketide synthase 13 (Pks13-TE) also leads to hydrolytic turnover and is nonstereospecific but occurs on a slower, multihour time scale. Our findings suggest the stereochemistry of the β-lactone ring of THL is important for cross enzyme reactivity, while the two stereocenters of the peptidyl arm can affect enzyme specificity and the catalytic hydrolysis of the β-lactone ring. The observed kinetic data for all three target enzymes are supported by recently published X-ray crystal structures of Ag85C, Rv3802, and Pks13-TE. Insights from this study provide a molecular basis for the kinetic modulation of three essential M. tuberculosis lipid esterases by THL and can be applied to increase potency and enzyme residence times and enhance the specificity of the THL scaffold.
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Affiliation(s)
- Christopher M Goins
- Department of Chemistry and Biochemistry , University of Toledo , Toledo , Ohio 43606 , United States
| | - Thanuja D Sudasinghe
- Department of Chemistry and Biochemistry , University of Toledo , Toledo , Ohio 43606 , United States
| | - Xiaofan Liu
- Department of Chemistry and Chemical Biology , Northeastern University , Boston , Massachusetts 02115 , United States
| | - Yanping Wang
- Department of Chemistry and Chemical Biology , Northeastern University , Boston , Massachusetts 02115 , United States
| | - George A O'Doherty
- Department of Chemistry and Chemical Biology , Northeastern University , Boston , Massachusetts 02115 , United States
| | - Donald R Ronning
- Department of Chemistry and Biochemistry , University of Toledo , Toledo , Ohio 43606 , United States
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27
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Liu X, Wang Y, Duclos RI, O’Doherty GA. Stereochemical Structure Activity Relationship Studies (S-SAR) of Tetrahydrolipstatin. ACS Med Chem Lett 2018. [PMID: 29541373 DOI: 10.1021/acsmedchemlett.8b00050] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Tetrahydrolipstatin (THL), its enantiomer, and an additional six diastereomers were evaluated as inhibitors of the hydrolysis of p-nitrophenyl butyrate by porcine pancreatic lipase. IC50s were found for all eight stereoisomers ranging from a low of 4.0 nM for THL to a high of 930 nM for the diastereomer with the inverted stereocenters at the 2,3,2'-positions. While the enantiomer of THL was also significantly less active (77 nM) the remaining five stereoisomers retained significant inhibitory activities (IC50s = 8.0 to 20 nM). All eight compounds were also evaluated against three human cancer cell lines (human breast cancers MCF-7 and MDA-MB-231, human large-cell lung carcinoma H460). No appreciable cytotoxicity was observed for THL and its seven diastereomers, as their IC50s in a MTT cytotoxicity assay were all greater than 3 orders of magnitude of camptothecin.
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Affiliation(s)
- Xiaofan Liu
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
| | - Yanping Wang
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
| | - Richard I. Duclos
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
| | - George A. O’Doherty
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
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28
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Chen H, Xiao Y, Yuan N, Weng J, Gao P, Breindel L, Shekhtman A, Zhang Q. Coupling of sterically demanding peptides by β-thiolactone-mediated native chemical ligation. Chem Sci 2018; 9:1982-1988. [PMID: 29675245 PMCID: PMC5892351 DOI: 10.1039/c7sc04744d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 01/02/2018] [Indexed: 12/30/2022] Open
Abstract
The ligation of sterically demanding peptidyl sites such as those involving Val-Val and Val-Pro linkages has proven to be extremely challenging with conventional NCL methods that rely on exogenous thiol additives. Herein, we report an efficient β-thiolactone-mediated additive-free NCL protocol that enables the establishment of these connections in good yield. The rapid NCL was followed by in situ desulfurization. Reaction rates between β-thiolactones and conventional thioesters towards NCL were also investigated, and direct aminolysis was ruled out as a possible pathway. Finally, the potent cytotoxic cyclic-peptide axinastatin 1 has been prepared using the developed methodology.
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Affiliation(s)
- Huan Chen
- Department of Chemistry , University at Albany , State University of New York , 1400 Washington Avenue , Albany , NY 12222 , USA .
| | - Yunxian Xiao
- Department of Chemistry , University at Albany , State University of New York , 1400 Washington Avenue , Albany , NY 12222 , USA .
| | - Ning Yuan
- State Key Laboratory of Natural and Biomimetic Drugs , School of Pharmaceutical Sciences , Peking University , 38 Xueyuan Road , Beijing 100191 , China
| | - Jiaping Weng
- Department of Chemistry , University at Albany , State University of New York , 1400 Washington Avenue , Albany , NY 12222 , USA .
| | - Pengcheng Gao
- Department of Chemistry , University at Albany , State University of New York , 1400 Washington Avenue , Albany , NY 12222 , USA .
| | - Leonard Breindel
- Department of Chemistry , University at Albany , State University of New York , 1400 Washington Avenue , Albany , NY 12222 , USA
| | - Alexander Shekhtman
- Department of Chemistry , University at Albany , State University of New York , 1400 Washington Avenue , Albany , NY 12222 , USA
| | - Qiang Zhang
- Department of Chemistry , University at Albany , State University of New York , 1400 Washington Avenue , Albany , NY 12222 , USA .
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29
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Híreš M, Rapavá N, Šimkovič M, Varečka Ľ, Berkeš D, Kryštofová S. Development and Optimization of a High-Throughput Screening Assay for Rapid Evaluation of Lipstatin Production by Streptomyces Strains. Curr Microbiol 2017; 75:580-587. [PMID: 29256008 DOI: 10.1007/s00284-017-1420-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 12/11/2017] [Indexed: 11/24/2022]
Abstract
Pancreatic lipase inhibitors, such as tetrahydrolipstatin (orlistat), are used in anti-obesity treatments. Orlistat is the only anti-obesity drug approved by the European Medicines Agency (EMA). The drug is synthesized by saturation of lipstatin, a β-lactone compound, isolated from Streptomyces toxytricini and S. virginiae. To identify producers of novel pancreatic lipase inhibitors or microbial strains with improved lipstatin production and higher chemical purity remains still a priority. In this study, a high-throughput screening method to identify Streptomyces strains producing potent pancreatic lipase inhibitors was established. The assay was optimized and validated using S. toxytricini NRRL 15443 and its mutants. Strains grew in 24-well titer plates. Lipstatin levels were assessed directly in culture medium at the end of cultivation by monitoring lipolytic activity in the presence of a chromogenic substrate, 1,2-Di-O-lauryl-rac-glycero-3-glutaric acid 6-methylresorufin ester (DGGR). The lipase activity decreased in response to lipstatin production, and this was demonstrated by accumulation of red-purple methylresorufin, a product of DGGR digestion. The sensitivity of the assay was achieved by adding a lipase of high lipolytic activity and sensitivity to lipstatin to the reaction mixture. In the assay, the fungal lipase from Mucor javanicus was used as an alternative to the human pancreatic lipase. Many fungal lipases preserve high lipolytic activity in extreme conditions and are not colipase dependent. The assay proved to be reliable in differentiation of strains with high and low lipstatin productivity.
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Affiliation(s)
- Michal Híreš
- Institute of Biochemistry and Microbiology, Slovak University of Technology, Radlinského 9, 81 237, Bratislava, Slovakia.
| | - Nora Rapavá
- Institute of Biochemistry and Microbiology, Slovak University of Technology, Radlinského 9, 81 237, Bratislava, Slovakia
| | - Martin Šimkovič
- Institute of Biochemistry and Microbiology, Slovak University of Technology, Radlinského 9, 81 237, Bratislava, Slovakia
| | - Ľudovít Varečka
- Institute of Biochemistry and Microbiology, Slovak University of Technology, Radlinského 9, 81 237, Bratislava, Slovakia
| | - Dušan Berkeš
- Department of Organic Chemistry, Slovak University of Technology, Radlinského 9, 81 237, Bratislava, Slovakia
| | - Svetlana Kryštofová
- Institute of Biochemistry and Microbiology, Slovak University of Technology, Radlinského 9, 81 237, Bratislava, Slovakia
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30
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Sun NN, Wu TY, Chau CF. Natural Dietary and Herbal Products in Anti-Obesity Treatment. Molecules 2016; 21:molecules21101351. [PMID: 27727194 PMCID: PMC6273667 DOI: 10.3390/molecules21101351] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 10/02/2016] [Accepted: 10/07/2016] [Indexed: 12/31/2022] Open
Abstract
The prevalence of overweight and obesity is on the rise around the world. Common comorbidities associated with obesity, particularly diabetes, hypertension, and heart disease have an impact on social and financial systems. Appropriate lifestyle and behavior interventions are still the crucial cornerstone to weight loss success, but maintaining such a healthy lifestyle is extremely challenging. Abundant natural materials have been explored for their obesity treatment potential and widely used to promote the development of anti-obesity products. The weight loss segment is one of the major contributors to the overall revenue of the dietary supplements market. In this review, the anti-obesity effects of different dietary or herbal products, and their active ingredients and mechanisms of action against obesity will be discussed.
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Affiliation(s)
- Nan-Nong Sun
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan.
| | - Tsung-Yen Wu
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan.
| | - Chi-Fai Chau
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan.
- Agricultural Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan.
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31
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Avocetien KF, Li JJ, Liu X, Wang Y, Xing Y, O'Doherty GA. De Novo Asymmetric Synthesis of Phoracantholide J. Org Lett 2016; 18:4970-4973. [PMID: 27635983 DOI: 10.1021/acs.orglett.6b02432] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A de novo asymmetric total synthesis of the macrolide natural product (S)-phoracantholide J has been achieved in 10 steps from the commodity chemicals (1-pentyne, ethyl acrylate, acetaldehyde, and hydrogen). The asymmetry of the route was introduced by a Noyori reduction of a 3-yn-2-one, which makes the route equally amenable to the synthesis of either enantiomer. In addition, this route relies upon an alkyne zipper, a hydroalkynylation, and a macrolactonization to complete the synthesis.
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Affiliation(s)
- Kenneth F Avocetien
- Department of Chemistry and Chemical Biology, Northeastern University , Boston, Massachusetts 02115, United States
| | - Jiazhen J Li
- Department of Chemistry and Chemical Biology, Northeastern University , Boston, Massachusetts 02115, United States
| | - Xiaofan Liu
- Department of Chemistry and Chemical Biology, Northeastern University , Boston, Massachusetts 02115, United States
| | - Yanping Wang
- Department of Chemistry and Chemical Biology, Northeastern University , Boston, Massachusetts 02115, United States
| | - Yalan Xing
- Department of Chemistry, William Paterson University , 300 Pompton Road, Wayne, New Jersey 07470, United States
| | - George A O'Doherty
- Department of Chemistry and Chemical Biology, Northeastern University , Boston, Massachusetts 02115, United States
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32
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Tiddens MR, Klein Gebbink RJM, Otte M. The B(C6F5)3-Catalyzed Tandem Meinwald Rearrangement–Reductive Amination. Org Lett 2016; 18:3714-7. [DOI: 10.1021/acs.orglett.6b01744] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Martine R. Tiddens
- Organic Chemistry & Catalysis, Debye Institute for Nanomaterials Science, Universiteit Utrecht, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Robertus J. M. Klein Gebbink
- Organic Chemistry & Catalysis, Debye Institute for Nanomaterials Science, Universiteit Utrecht, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Matthias Otte
- Organic Chemistry & Catalysis, Debye Institute for Nanomaterials Science, Universiteit Utrecht, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
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33
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Chiu HC, Pearce AJ, Dunn PL, Cramer CJ, Tonks IA. β-Oxo-δ-diimine Nickel Complexes: A Comparison of Tautomeric Active Species in Ethylene Polymerization Catalysis. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00256] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hsin-Chun Chiu
- Department
of Chemistry, University of Minnesota−Twin Cities, 207 Pleasant
Street SE, Minneapolis, Minnesota 55455, United States
| | - Adam J. Pearce
- Department
of Chemistry, University of Minnesota−Twin Cities, 207 Pleasant
Street SE, Minneapolis, Minnesota 55455, United States
| | - Peter L. Dunn
- Department
of Chemistry, University of Minnesota−Twin Cities, 207 Pleasant
Street SE, Minneapolis, Minnesota 55455, United States
| | - Christopher J. Cramer
- Department
of Chemistry, University of Minnesota−Twin Cities, 207 Pleasant
Street SE, Minneapolis, Minnesota 55455, United States
| | - Ian A. Tonks
- Department
of Chemistry, University of Minnesota−Twin Cities, 207 Pleasant
Street SE, Minneapolis, Minnesota 55455, United States
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34
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Torres GM, Quesnel JS, Bijou D, Arndtsen BA. From Aryl Iodides to 1,3-Dipoles: Design and Mechanism of a Palladium Catalyzed Multicomponent Synthesis of Pyrroles. J Am Chem Soc 2016; 138:7315-24. [PMID: 27172766 DOI: 10.1021/jacs.6b02314] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Gerardo M. Torres
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Quebec, H3A 0B8 Canada
| | - Jeffrey S. Quesnel
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Quebec, H3A 0B8 Canada
| | - Diane Bijou
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Quebec, H3A 0B8 Canada
| | - Bruce A. Arndtsen
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Quebec, H3A 0B8 Canada
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35
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2014. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.09.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Takanami T, Sugita N, Tsuchiya I. Palladium-Catalyzed Cross-Coupling Reactions of Brominated Porphyrins with Functionalized Organomagnesium Reagents: Direct Preparation of Functional-Group-Bearing Free Base Porphyrins. HETEROCYCLES 2016. [DOI: 10.3987/com-15-s(t)20] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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37
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Affiliation(s)
- Xiaofan Liu
- Department of Chemistry and Chemical Biology Northeastern University, 102 Hurtig Hall 360 Huntington Ave Boston MA 02115 USA
| | - Yanping Wang
- Department of Chemistry and Chemical Biology Northeastern University, 102 Hurtig Hall 360 Huntington Ave Boston MA 02115 USA
| | - George A. O'Doherty
- Department of Chemistry and Chemical Biology Northeastern University, 102 Hurtig Hall 360 Huntington Ave Boston MA 02115 USA
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38
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Mineeva IV. Asymmetric syntheses of the lactone core of tetrahydrolipstatin and tetrahydroesterastin and of the oriental hornet Vespa Orientalis pheromone. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2015. [DOI: 10.1134/s1070428015060044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Lin Z, Li J, Huang Q, Huang Q, Wang Q, Tang L, Gong D, Yang J, Zhu J, Deng J. Chiral surfactant-type catalyst: enantioselective reduction of long-chain aliphatic ketoesters in water. J Org Chem 2015; 80:4419-29. [PMID: 25830366 DOI: 10.1021/acs.joc.5b00241] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A series of amphiphilic ligands were designed and synthesized. The rhodium complexes with the ligands were applied to the asymmetric transfer hydrogenation of broad range of long-chained aliphatic ketoesters in neat water. Quantitative conversion and excellent enantioselectivity (up to 99% ee) was observed for α-, β-, γ-, δ- and ε-ketoesters as well as for α- and β-acyloxyketone using chiral surfactant-type catalyst 2. The CH/π interaction and the strong hydrophobic interaction of long aliphatic chains between the catalyst and the substrate in the metallomicelle core played a key role in the catalytic transition state. Synergistic effects between the metal-catalyzed site and the hydrophobic microenvironment of the core in the micelle contributed to high stereoselectivity.
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Affiliation(s)
- Zechao Lin
- †Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China.,§Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiahong Li
- †Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China.,§Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qingfei Huang
- †Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Qiuya Huang
- †Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Qiwei Wang
- †Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Lei Tang
- #Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Deying Gong
- #Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jun Yang
- #Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jin Zhu
- †Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Jingen Deng
- †Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China.,‡Key Laboratory of Drug-Targeting of Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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40
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Camara K, Kamat SS, Lasota CC, Cravatt BF, Howell AR. Combining cross-metathesis and activity-based protein profiling: new β-lactone motifs for targeting serine hydrolases. Bioorg Med Chem Lett 2015; 25:317-21. [PMID: 25541002 PMCID: PMC4279111 DOI: 10.1016/j.bmcl.2014.11.038] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 11/11/2014] [Accepted: 11/13/2014] [Indexed: 11/27/2022]
Abstract
β-Lactones are a privileged structural motif as enzyme inhibitors and chemical probes, particularly for the inhibition of enzymes from the serine hydrolase class. Herein, we demonstrate that cross-metathesis (CM) of α-methylene-β-lactones offers rapid access to structurally diverse, previously unexplored β-lactones. Combining this approach with competitive activity-based protein profiling (ABPP) identified lead β-lactone inhibitors/probes for several serine hydrolases, including disease-associated enzymes and enzymes of uncharacterized function. The structural diversity afforded by the α-methylene-β-lactone scaffold thus expands the landscape of serine hydrolases that can be targeted by small-molecule inhibitors and should further the functional characterization of enzymes from this class through the optimization of target-selective probes.
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Affiliation(s)
- Kaddy Camara
- Department of Chemistry, University of Connecticut, Storrs, CT 06269-3060, United States
| | - Siddhesh S Kamat
- Department of Chemical Physiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92307, United States
| | - Celina C Lasota
- Department of Chemistry, University of Connecticut, Storrs, CT 06269-3060, United States
| | - Benjamin F Cravatt
- Department of Chemical Physiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92307, United States.
| | - Amy R Howell
- Department of Chemistry, University of Connecticut, Storrs, CT 06269-3060, United States.
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41
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Lamb JR, Jung Y, Coates GW. Meinwald-type rearrangement of monosubstituted epoxides to methyl ketones using an [Al porphyrin]+[Co(CO)4]−catalyst. Org Chem Front 2015. [DOI: 10.1039/c4qo00324a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Meinwald-type rearrangement of monosubstituted epoxides to methyl ketones using a well-defined aluminum porphyrin catalyst is reported.
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Affiliation(s)
- Jessica R. Lamb
- Department of Chemistry and Chemical Biology
- Baker Laboratory
- Cornell University
- Ithaca
- USA
| | - Yukyung Jung
- Department of Chemistry and Chemical Biology
- Baker Laboratory
- Cornell University
- Ithaca
- USA
| | - Geoffrey W. Coates
- Department of Chemistry and Chemical Biology
- Baker Laboratory
- Cornell University
- Ithaca
- USA
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42
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Lapinsky DJ. Three-Membered Ring Systems. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/b978-0-08-100024-3.00003-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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43
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Hawaiinolides E–G, cytotoxic cassane and cleistanthane diterpenoids from the entomogenous fungus Paraconiothyrium hawaiiense. Fitoterapia 2014; 99:236-42. [DOI: 10.1016/j.fitote.2014.09.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 09/23/2014] [Accepted: 09/25/2014] [Indexed: 11/17/2022]
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44
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Xu T, Alper H. Pd-Catalyzed Chemoselective Carbonylation of Aminophenols with Iodoarenes: Alkoxycarbonylation vs Aminocarbonylation. J Am Chem Soc 2014; 136:16970-3. [DOI: 10.1021/ja508588b] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Tongyu Xu
- Centre
for Catalysis Research
and Innovation, Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Howard Alper
- Centre
for Catalysis Research
and Innovation, Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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45
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Mulzer M, Coates GW. Carbonylation of cis-Disubstituted Epoxides to trans-β-Lactones: Catalysts Displaying Steric and Contrasteric Regioselectivity. J Org Chem 2014; 79:11851-62. [DOI: 10.1021/jo501899e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Michael Mulzer
- Department of Chemistry and
Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Geoffrey W. Coates
- Department of Chemistry and
Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
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