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Wu YC, Xu GS, Li HJ, Bian YJ, Qi ZQ, Wu YC. Divergent and Stereoselective Synthesis of Ustusal A, (-)-Albrassitriol, and Elegansin D. J Org Chem 2023; 88:16511-16519. [PMID: 37972539 DOI: 10.1021/acs.joc.3c01992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
The first synthesis of ustusal A as well as expeditious access to (-)-albrassitriol is described as featuring a singlet oxygen [4 + 2] cycloaddition, achieving the desired stereoselectivity for the 1,4-cis-hydroxyl groups. Transformation of (+)-sclareolide to III followed by a key Horner-Wadsworth-Emmons (HWE) reaction and stereospecific allylic oxidation facilitated the first synthesis of elegansin D. The biological evaluation of these natural products together with seven elegansin D analogues was performed, among which several elegansin D analogues exhibited potential anticancer activity against liver cancer HepG2 cells (IC50 = 11.99-25.58 μM) with low cytotoxicity on normal liver HL7702 cells (IC50 > 100 μM).
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Affiliation(s)
- Yue-Cheng Wu
- Weihai Marine Organism & Medical Technology Research Institute, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150006, P. R. China
| | - Guang-Sen Xu
- Weihai Key Laboratory of Active Factor of Marine Products, Weihai Marine Organism & Medical Technology Research Institute, Harbin Institute of Technology, Weihai 264209, P. R. China
| | - Hui-Jing Li
- Weihai Marine Organism & Medical Technology Research Institute, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150006, P. R. China
- Weihai Key Laboratory of Active Factor of Marine Products, Weihai Marine Organism & Medical Technology Research Institute, Harbin Institute of Technology, Weihai 264209, P. R. China
| | - Ya-Jing Bian
- Weihai Key Laboratory of Active Factor of Marine Products, Weihai Marine Organism & Medical Technology Research Institute, Harbin Institute of Technology, Weihai 264209, P. R. China
| | - Zhong-Quan Qi
- Weihai Key Laboratory of Active Factor of Marine Products, Weihai Marine Organism & Medical Technology Research Institute, Harbin Institute of Technology, Weihai 264209, P. R. China
| | - Yan-Chao Wu
- Weihai Marine Organism & Medical Technology Research Institute, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150006, P. R. China
- Weihai Key Laboratory of Active Factor of Marine Products, Weihai Marine Organism & Medical Technology Research Institute, Harbin Institute of Technology, Weihai 264209, P. R. China
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Chong C, Zhang Q, Ke J, Zhang H, Yang X, Wang B, Ding W, Lu Z. Total Synthesis of Anti‐Cancer Meroterpenoids Dysideanone B and Dysiherbol A and Structural Reassignment of Dysiherbol A. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chuanke Chong
- State Key Laboratory of Medicinal Chemical Biology College of Pharmacy Nankai University 38 Tongyan Rd Tianjin 300350 China
| | - Qunlong Zhang
- State Key Laboratory of Medicinal Chemical Biology College of Pharmacy Nankai University 38 Tongyan Rd Tianjin 300350 China
| | - Jia Ke
- State Key Laboratory of Medicinal Chemical Biology College of Pharmacy Nankai University 38 Tongyan Rd Tianjin 300350 China
| | - Haiming Zhang
- State Key Laboratory of Medicinal Chemical Biology College of Pharmacy Nankai University 38 Tongyan Rd Tianjin 300350 China
| | - Xudong Yang
- State Key Laboratory of Medicinal Chemical Biology College of Pharmacy Nankai University 38 Tongyan Rd Tianjin 300350 China
| | - Bingjian Wang
- State Key Laboratory of Medicinal Chemical Biology College of Pharmacy Nankai University 38 Tongyan Rd Tianjin 300350 China
| | - Wei Ding
- Tianjin Key Laboratory of Human Development and Reproductive Regulation Tianjin Central Hospital of Gynecology Obstetrics Nankai University 156 Third Rd Tianjin 300052 China
| | - Zhaoyong Lu
- State Key Laboratory of Medicinal Chemical Biology College of Pharmacy Nankai University 38 Tongyan Rd Tianjin 300350 China
- State Key Laboratory of Natural Medicines China Pharmaceutical University 24 Tongjiaxiang Nanjing 210009 China
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Chong C, Zhang Q, Ke J, Zhang H, Yang X, Wang B, Ding W, Lu Z. Total Synthesis of Anti-Cancer Meroterpenoids Dysideanone B and Dysiherbol A and Structural Reassignment of Dysiherbol A. Angew Chem Int Ed Engl 2021; 60:13807-13813. [PMID: 33847042 DOI: 10.1002/anie.202100541] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/30/2021] [Indexed: 01/01/2023]
Abstract
The first total synthesis of marine anti-cancer meroterpenoids dysideanone B and dysiherbol A have been accomplished in a divergent way. The synthetic route features: 1) a site and stereoselective α-position alkylation of a Wieland-Miescher ketone derivative with a bulky benzyl bromide to join the terpene and aromatic moieties together and set the stage for subsequent cyclization reactions; 2) an intramolecular radical cyclization to construct the 6/6/6/6-tetracycle of dysideanone B and an intramolecular Heck reaction to forge the 6/6/5/6-fused core structure of dysiherbol A. A late-stage introduction of the ethoxy group in dysideanone B reveals that this group might come from the solvent ethanol. The structure of dysiherbol A has been revised based on our chemical total synthesis.
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Affiliation(s)
- Chuanke Chong
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, 38 Tongyan Rd, Tianjin, 300350, China
| | - Qunlong Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, 38 Tongyan Rd, Tianjin, 300350, China
| | - Jia Ke
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, 38 Tongyan Rd, Tianjin, 300350, China
| | - Haiming Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, 38 Tongyan Rd, Tianjin, 300350, China
| | - Xudong Yang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, 38 Tongyan Rd, Tianjin, 300350, China
| | - Bingjian Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, 38 Tongyan Rd, Tianjin, 300350, China
| | - Wei Ding
- Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin Central Hospital of Gynecology Obstetrics, Nankai University, 156 Third Rd, Tianjin, 300052, China
| | - Zhaoyong Lu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, 38 Tongyan Rd, Tianjin, 300350, China.,State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, China
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Abstract
Covering: January to December 2017This review covers the literature published in 2017 for marine natural products (MNPs), with 740 citations (723 for the period January to December 2017) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1490 in 477 papers for 2017), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that led to the revision of structures or stereochemistries, have been included. Geographic distributions of MNPs at a phylogenetic level are reported.
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Affiliation(s)
- Anthony R Carroll
- School of Environment and Science, Griffith University, Gold Coast, Australia. and Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia
| | - Brent R Copp
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia
| | - Robert A Keyzers
- Centre for Biodiscovery, School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand
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García PA, Hernández ÁP, San Feliciano A, Castro MÁ. Bioactive Prenyl- and Terpenyl-Quinones/Hydroquinones of Marine Origin †. Mar Drugs 2018; 16:E292. [PMID: 30134616 PMCID: PMC6165040 DOI: 10.3390/md16090292] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 08/15/2018] [Accepted: 08/17/2018] [Indexed: 01/05/2023] Open
Abstract
The sea is a rich source of biological active compounds, among which terpenyl-quinones/hydroquinones constitute a family of secondary metabolites with diverse pharmacological properties. The chemical diversity and bioactivity of those isolated from marine organisms in the last 10 years are summarized in this review. Aspects related to synthetic approaches towards the preparation of improved bioactive analogues from inactive terpenoids are also outlined.
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Affiliation(s)
- Pablo A García
- Department of Pharmaceutical Sciences, Pharmaceutical Chemistry Section, CIETUS/IBSAL, Faculty of Pharmacy, University of Salamanca, E-37007 Salamanca, Spain.
| | - Ángela P Hernández
- Department of Pharmaceutical Sciences, Pharmaceutical Chemistry Section, CIETUS/IBSAL, Faculty of Pharmacy, University of Salamanca, E-37007 Salamanca, Spain.
| | - Arturo San Feliciano
- Department of Pharmaceutical Sciences, Pharmaceutical Chemistry Section, CIETUS/IBSAL, Faculty of Pharmacy, University of Salamanca, E-37007 Salamanca, Spain.
| | - Mª Ángeles Castro
- Department of Pharmaceutical Sciences, Pharmaceutical Chemistry Section, CIETUS/IBSAL, Faculty of Pharmacy, University of Salamanca, E-37007 Salamanca, Spain.
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Takeda Y, Nakai K, Narita K, Katoh T. A novel approach to sesquiterpenoid benzoxazole synthesis from marine sponges: nakijinols A, B and E–G. Org Biomol Chem 2018; 16:3639-3647. [DOI: 10.1039/c8ob00721g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nakijinols A, B, E, F and G were efficiently synthesized via the ring closure of the N-(2-hydroxyphenyl)-formamide or -acetamide moiety.
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Affiliation(s)
- Yuki Takeda
- Faculty of Pharmaceutical Sciences
- Tohoku Medical and Pharmaceutical University
- Sendai
- Japan
| | - Keiyo Nakai
- Faculty of Pharmaceutical Sciences
- Tohoku Medical and Pharmaceutical University
- Sendai
- Japan
| | - Koichi Narita
- Faculty of Pharmaceutical Sciences
- Tohoku Medical and Pharmaceutical University
- Sendai
- Japan
| | - Tadashi Katoh
- Faculty of Pharmaceutical Sciences
- Tohoku Medical and Pharmaceutical University
- Sendai
- Japan
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Chang L, Plevová K, Thorimbert S, Dechoux L. Preparation of Substituted 2H-Pyrans via a Cascade Reaction from Methyl Coumalate and Activated Methylene Nucleophiles. J Org Chem 2017; 82:5499-5505. [PMID: 28471191 DOI: 10.1021/acs.joc.7b00761] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of methyl coumalate with a wide range of methylene active compounds, such as keto-esters or keto-sulfones and cyclic or acyclic diketones, afforded more than 30 2,3,5,6-tetrasubstituted 2H-pyrans. The reaction proceeds via a cascade reaction involving a Michael addition-6π-electrocyclic ring opening-proton transfer and 6π electrocyclization, in which a variety of functional groups were tolerated.
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Affiliation(s)
- Liang Chang
- Sorbonne Universités , UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232, 4 place Jussieu, F-75005 Paris, France
| | - Kristína Plevová
- Sorbonne Universités , UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232, 4 place Jussieu, F-75005 Paris, France
| | - Serge Thorimbert
- Sorbonne Universités , UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232, 4 place Jussieu, F-75005 Paris, France
| | - Luc Dechoux
- Sorbonne Universités , UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232, 4 place Jussieu, F-75005 Paris, France
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