1
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Rathod AB, Borade BR, Sambherao PI, Kontham R. Bi(OTf) 3-promoted cascade annulation of hydroxy-pyranones and unsaturated γ-ketoesters for the construction of polycyclic bridged pyrano-furopyranones. Org Biomol Chem 2024; 22:496-500. [PMID: 38165227 DOI: 10.1039/d3ob01862h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
An efficient protocol for constructing complex three dimensional polycyclic bridged chromano-furopyranones and pyrano-furopyranones (closely related to bioactive natural products) via bismuth(III)-catalyzed cascade annulation of hydroxy-pyranones and unsaturated γ-ketoesters is presented. This process involves intermolecular Michael addition, intramolecular hemiketalization, lactonization, formation of one C-C bond and two C-O bonds, rings, and contiguous stereocenters.
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Affiliation(s)
- Akshay B Rathod
- Organic Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Balasaheb R Borade
- Organic Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Pooja I Sambherao
- Organic Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Ravindar Kontham
- Organic Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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2
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Yi ZY, Xiao L, Chang X, Dong XQ, Wang CJ. Iridium-Catalyzed Asymmetric Cascade Allylation/Retro-Claisen Reaction. J Am Chem Soc 2022; 144:20025-20034. [PMID: 36264302 DOI: 10.1021/jacs.2c08811] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An enantiomerically enriched 3-hydroxymethyl pentenal unit is one of the key structural cores in plenty of natural products and drug candidates with significant biological activities. However, very few synthetic methodologies for the facile construction of the related skeletons have been reported to date. Herein, an elegant iridium-catalyzed asymmetric cascade allylation/retro-Claisen reaction of readily available β-diketones with VEC was successfully developed, and a wide range of functionalized chiral 3-hydroxymethyl pentenal derivatives could be prepared in good yields with excellent enantioselectivities. Various 1,3-diketones and functionalized ketones containing different electron-withdrawing groups on the β-position were well tolerated as outstanding partners with high reactivity and excellent regio-/chemo-/enantioselectivity. The synthetic utility of product chiral 3-hydroxymethyl pentenal derivatives was well shown through gram-scale transformation, hydrogenation, cyclopropanation, hydroboration, and olefin metathesis. Moreover, this elegant protocol demonstrated synthetic applications in the concise synthesis of synthetically useful chiral building block (S)-Taniguchi lactone and the formal synthesis of natural product cytisine. A rational reaction pathway was proposed based on the experimental results and control experiments.
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Affiliation(s)
- Zhi-Yuan Yi
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Lu Xiao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xin Chang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Chun-Jiang Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.,State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
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3
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Arcile G, Ouazzani J, Betzer JF. Efficient Piancatelli rearrangement on a large scale using the Zippertex technology under subcritical water conditions. REACT CHEM ENG 2022. [DOI: 10.1039/d2re00098a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A series of furyl carbinols, which were directly obtained from a bio-sourced raw material, were efficiently transformed into cyclopentenone derivatives in good yields and on a large scale using the Zippertex technology under subcritical water conditions.
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Affiliation(s)
- Guillaume Arcile
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Jamal Ouazzani
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Jean-François Betzer
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
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4
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Feng L, Han J, Wang J, Zhang AX, Miao YY, Tan NH, Wang Z. Pestalopyrones A-D, four tricyclic pyrone derivatives from the endophytic fungus Pestalotiopsis neglecta S3. PHYTOCHEMISTRY 2020; 179:112505. [PMID: 32919290 DOI: 10.1016/j.phytochem.2020.112505] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 08/20/2020] [Accepted: 08/25/2020] [Indexed: 06/11/2023]
Abstract
Four undescribed pyrone derivatives, pestalopyrones A-D, containing unusual tricyclic 5/6/6 polycyclic skeletons, were isolated from the ethyl acetate extract of the endophytic fungus Pestalotiopsis neglecta S3 derived from the fresh stems of Rubia podantha Diels (Rubiaceae). Their planar structures were elucidated mainly by NMR and HRESIMS. Pestalopyrones A-D contained six contiguous chiral carbons, and the relative configurations of C-4, C-5, and C-8 in tricyclic 5/6/6 polycyclic skeletons were determined by ROESY spectra. For pestalopyrone B, the absolute configuration of C-16 was determined by the Mosher's method. All isolated compounds were tested for their cytotoxicity against cancer cell lines, antibacterial activity, and inhibitory effect on the lipopolysaccharide (LPS)-induced nitric oxide (NO) production, and the results showed that pestalopyrone A inhibited LPS-induced NO production with an IC50 value of 35.8 μM.
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Affiliation(s)
- Li Feng
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Jing Han
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jia Wang
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - An-Xin Zhang
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Yuan-Yuan Miao
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Ning-Hua Tan
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
| | - Zhe Wang
- Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
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5
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Stewart SG, Harfoot GJ, McRae KJ, Teng Y, Yu LJ, Chen B, Cammi R, Coote ML, Banwell MG, Willis AC. High-Pressure-Promoted and Facially Selective Diels–Alder Reactions of Enzymatically Derived cis-1,2-Dihydrocatechols and Their Acetonide Derivatives: Enantiodivergent Routes to Homochiral and Polyfunctionalized Bicyclo[2.2.2]octenes. J Org Chem 2020; 85:13080-13095. [DOI: 10.1021/acs.joc.0c01767] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Scott G. Stewart
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, ACT 2601 Australia
| | - Gwion J. Harfoot
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, ACT 2601 Australia
| | - Kenneth J. McRae
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, ACT 2601 Australia
| | - Yinglai Teng
- Institute for Advanced and Applied Chemical Synthesis, Jinan University, Guangzhou 510632, China
| | - Li-Juan Yu
- Research School of Chemistry, Institute of Advanced Studies and ARC Centre of Excellence for Electromaterials Science, Research School of Chemistry, The Australian National University, Canberra, ACT 2601 Australia
| | - Bo Chen
- Donostia International Physics Center, Paseo Manuel de Lardizabal, 4, 20018 Donostia-San Sebastian, Spain
- IKERBASQUE, Basque Foundation for Science, Maria Diaz de Haro 3, 48013 Bilbao, Spain
| | - Roberto Cammi
- Department of Chemical Science, Life Science and Environmental Sustainability, University of Parma, I-43100 Parma, Italy
| | - Michelle L. Coote
- Research School of Chemistry, Institute of Advanced Studies and ARC Centre of Excellence for Electromaterials Science, Research School of Chemistry, The Australian National University, Canberra, ACT 2601 Australia
| | - Martin G. Banwell
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, ACT 2601 Australia
- Institute for Advanced and Applied Chemical Synthesis, Jinan University, Guangzhou 510632, China
| | - Anthony C. Willis
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, ACT 2601 Australia
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6
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Lai Y, Nagaraju K, Gurubrahamam R, Chen K. Enantioselective Organocatalytic Synthesis of
δ
‐Lactone‐Fused 4‐Chromanones. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000667] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yu‐Ting Lai
- Department of Chemistry National Taiwan Normal University Taipei 11677 Taiwan R.O.C
| | - Koppanathi Nagaraju
- Department of Chemistry National Taiwan Normal University Taipei 11677 Taiwan R.O.C
| | - Ramani Gurubrahamam
- Department of Chemistry Indian Institute of Technology Jammu, Jagti, NH 44 Jammu (J&K) 181221 India
| | - Kwunmin Chen
- Department of Chemistry National Taiwan Normal University Taipei 11677 Taiwan R.O.C
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7
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Song L, Su Q, Lin X, Du Z, Xu H, Ouyang MA, Yao H, Tong R. Cascade Claisen and Meinwald Rearrangement for One-Pot Divergent Synthesis of Benzofurans and 2H-Chromenes. Org Lett 2020; 22:3004-3009. [DOI: 10.1021/acs.orglett.0c00770] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Liyan Song
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Qian Su
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Xi Lin
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Zhihui Du
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Huiyou Xu
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Ming-An Ouyang
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Hongliang Yao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Drug Synthesis and Evaluation Center, Guangdong Institute of Applied Biological Resources, Guangzhou, Guangdong 510260, China
| | - Rongbiao Tong
- Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China
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8
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Reactions of 3-functionalized chromones with triacetic acid lactone. MENDELEEV COMMUNICATIONS 2020. [DOI: 10.1016/j.mencom.2020.03.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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9
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Chen JB, Xu M, Zhang JQ, Sun BB, Hu JM, Yu JQ, Wang XW, Xia Y, Wang Z. Modular Chiral Bisoxalamide–Copper-Catalyzed Asymmetric Oxo-Diels–Alder Reaction: Carbonyl Coordination for High Enantio- and Diastereocontrols. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05606] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Jun-Bo Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Man Xu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province 325035, People’s Republic of China
| | - Jun-Qi Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Bing-Bing Sun
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Jia-Ming Hu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Jie-Qiang Yu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Xing-Wang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province 325035, People’s Republic of China
| | - Zheng Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
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10
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Dong DQ, Li LX, Li GH, Deng Q, Wang ZL, Long S. Visible-light-induced deoxygenative C2-sulfonylation of quinoline N-oxides with sulfinic acids for the synthesis of 2-sulfonylquinoline via radical reactions. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63420-0] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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11
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Truax NJ, Ayinde S, Van K, Liu JO, Romo D. Pharmacophore-Directed Retrosynthesis Applied to Rameswaralide: Synthesis and Bioactivity of Sinularia Natural Product Tricyclic Cores. Org Lett 2019; 21:7394-7399. [PMID: 31498642 DOI: 10.1021/acs.orglett.9b02713] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A pharmacophore-directed retrosynthesis strategy applied to rameswaralide provided simplified precursors bearing the common 5,5,6 (red) and 5,5,7 (blue) skeleton present in several cembranoid and norcembranoids from Sinularia soft corals. Key steps include a Diels-Alder lactonization organocascade delivering the common 5,5,6 core and a subsequent ring expansion affording a 5,5,7 core serviceable for the synthesis of rameswaralide. Initial structure-activity relationships of intermediates en route to the natural product have revealed interesting differential and selective cytotoxicity.
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Affiliation(s)
- Nathanyal J Truax
- Department of Chemistry & Biochemistry , Baylor University , Waco , Texas 76710 , United States
| | - Safiat Ayinde
- Department of Pharmacology and Molecular Sciences , John Hopkins School of Medicine , 725 North Wolfe Street , Baltimore , Maryland 21205 , United States
| | - Khoi Van
- Department of Chemistry & Biochemistry , Baylor University , Waco , Texas 76710 , United States
| | - Jun O Liu
- Department of Pharmacology and Molecular Sciences , John Hopkins School of Medicine , 725 North Wolfe Street , Baltimore , Maryland 21205 , United States
| | - Daniel Romo
- Department of Chemistry & Biochemistry , Baylor University , Waco , Texas 76710 , United States
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12
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Obydennov DL, El-Tantawy AI, Sosnovskikh VY. Triacetic acid lactone as a bioprivileged molecule in organic synthesis. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.01.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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13
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Schrof R, Altmann KH. Studies toward the Total Synthesis of the Marine Macrolide Salarin C. Org Lett 2018; 20:7679-7683. [PMID: 30474982 DOI: 10.1021/acs.orglett.8b03422] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A convergent strategy for the synthesis of dideoxysalarin C (3) as a potential intermediate for the total synthesis of the marine macrolide salarin C (1) is described. The macrolactone core of 3 was assembled by Suzuki coupling between alkyl iodide 9 and vinyl iodide 8 and Shiina macrolactonization as key transformations. All macrocyclic intermediates were found to be of low stability.
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Affiliation(s)
- Raffael Schrof
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences , ETH Zürich , Vladimir-Prelog-Weg 4 , CH-8093 Zürich , Switzerland
| | - Karl-Heinz Altmann
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences , ETH Zürich , Vladimir-Prelog-Weg 4 , CH-8093 Zürich , Switzerland
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14
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Sharma V, Bhardwaj VK, Chimni SS. Stereoselective Organocatalytic Synthesis of
γ,γ‐
Disubstituted Butenolides. ChemistrySelect 2018. [DOI: 10.1002/slct.201801217] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Vivek Sharma
- Department of ChemistryU.G.C. Centre of Advanced StudiesGuru Nanak Dev University Amritsar 143005 India
| | - Vimal K. Bhardwaj
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar 140001 India
| | - Swapandeep S. Chimni
- Department of ChemistryU.G.C. Centre of Advanced StudiesGuru Nanak Dev University Amritsar 143005 India
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15
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Verrier C, Moebs-Sanchez S, Queneau Y, Popowycz F. The Piancatelli reaction and its variants: recent applications to high added-value chemicals and biomass valorization. Org Biomol Chem 2018; 16:676-687. [DOI: 10.1039/c7ob02962d] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The conversion of furfuryl alcohols by the Piancatelli reaction (and its C- and N-variants) provided highly functionalized cyclopentenones (intermolecular) and spirocycles (intramolecular).
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16
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Zhang H, Yao Q, Cao W, Ge S, Xu J, Liu X, Feng X. Catalytic enantioselective ene-type reactions of vinylogous hydrazone: construction of α-methylene-γ-butyrolactone derivatives. Chem Commun (Camb) 2018; 54:12511-12514. [DOI: 10.1039/c8cc07567k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Catalytic asymmetric ene-type reactions of vinylogous hydrazone with isatins, α-ketoester, imines and aldehydes were accomplished which gave an environmentally friendly, straightforward approach to afford bioactive chiral α-methylene-γ-butyrolactone derivatives.
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Affiliation(s)
- Hang Zhang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Qian Yao
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Shulin Ge
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Jinxiu Xu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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17
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Wu H, Hsung RP, Tang Y. Total Syntheses of (±)-Rhodonoids C, D, E, F, and G and Ranhuadujuanine B. Org Lett 2017; 19:3505-3507. [PMID: 28604000 DOI: 10.1021/acs.orglett.7b01463] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Here we describe the divergent, biosynthetically inspired syntheses of (±)-rhodonoids C-G and (±)-ranhuadujuanine B. The key steps of the syntheses include the construction of the chromene unit through a formal oxa-[3 + 3] annulation and a biomimetic acid-catalyzed ring cyclization. Cationic [2 + 2] cycloaddition is accomplished to form the cyclobutane core of (±)-rhodonoids E and F.
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Affiliation(s)
- Hao Wu
- School of Pharmaceutical Science and Technology, Tianjin University , Tianjin 300072, P. R. China
| | - Richard P Hsung
- Division of Pharmaceutical Sciences, University of Wisconsin , Madison, Wisconsin 53705, United States
| | - Yu Tang
- School of Pharmaceutical Science and Technology, Tianjin University , Tianjin 300072, P. R. China.,Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, P. R. China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao 266237, P. R. China
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18
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Wu H, Hsung RP, Tang Y. Total Syntheses of (±)-Rhodonoids A and B and C12-epi-Rhodonoid B. J Org Chem 2017; 82:1545-1551. [PMID: 28034311 DOI: 10.1021/acs.joc.6b02739] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Total syntheses of (±)-rhodonoids A and B and C12-epi-rhodonoid B are described here. A unified strategy employed in these syntheses is an intramolecular oxa-[3 + 3] annulation for accessing the chromene unit. A Fe(OTf)3-promoted diastereoselective cationic [2 + 2] cycloaddition and a photochemical [2 + 2] cycloaddition were featured to construct the cyclobutane core of (±)-rhodonoids A and B and C12-epi-rhodonoid B, respectively. Fe(OTf)3 also leads to an interesting bridged tetracycle, which was unambiguously confirmed by single crystal X-ray analysis.
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Affiliation(s)
- Hao Wu
- School of Pharmaceutical Science and Technology, Tianjin University , Tianjin, 300072 P. R. China
| | - Richard P Hsung
- School of Pharmacy, University of Wisconsin , Madison, Wisconsin 53705, United States
| | - Yu Tang
- School of Pharmaceutical Science and Technology, Tianjin University , Tianjin, 300072 P. R. China.,Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, China.,Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology , Qingdao 266237, P. R. China
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19
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Schmidt B, Wolf F, Ehlert C. Systematic Investigation into the Matsuda–Heck Reaction of α-Methylene Lactones: How Conformational Constraints Direct the β-H-Elimination Step. J Org Chem 2016; 81:11235-11249. [DOI: 10.1021/acs.joc.6b02207] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bernd Schmidt
- Universitaet Potsdam, Institut fuer Chemie, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam-Golm, Germany
| | - Felix Wolf
- Universitaet Potsdam, Institut fuer Chemie, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam-Golm, Germany
| | - Christopher Ehlert
- Universitaet Potsdam, Institut fuer Chemie, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam-Golm, Germany
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20
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Abstract
This review covers the literature published in 2013 for marine natural products (MNPs), with 982 citations (644 for the period January to December 2013) 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 (1163 for 2013), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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21
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α-Alkylidene-γ-butyrolactone synthesis via one-pot C–H insertion/olefination: substrate scope and the total synthesis of (±)-cedarmycins A and B. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.09.054] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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De Joarder D, Jennings MP. Umpolung Pd-Catalyzed α-Arylation Reactions in Natural Product Synthesis: Syntheses of (+)-Xestodecalactone A, (-)-Curvularin, (+)-12-Oxocurvularin and (-)-Citreofuran. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500287] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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23
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Kathirvelan D, Haribabu J, Reddy B, Balachandran C, Duraipandiyan V. Facile and diastereoselective synthesis of 3,2′-spiropyrrolidine-oxindoles derivatives, their molecular docking and antiproliferative activities. Bioorg Med Chem Lett 2015; 25:389-99. [DOI: 10.1016/j.bmcl.2014.10.099] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Revised: 10/29/2014] [Accepted: 10/31/2014] [Indexed: 11/26/2022]
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24
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Ruider SA, Sandmeier T, Carreira EM. Total synthesis of (±)-hippolachnin A. Angew Chem Int Ed Engl 2014; 54:2378-82. [PMID: 25476132 DOI: 10.1002/anie.201410419] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Indexed: 11/08/2022]
Abstract
The first total synthesis of the marine polyketide (±)-hippolachnin A has been achieved in nine linear steps and an overall yield of 9%. Rapid access to the oxacyclobutapentalene core structure was secured by strategic application of an ene cyclization.
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Affiliation(s)
- Stefan A Ruider
- Laboratorium für Organische Chemie, ETH Zürich, HCI H335, Vladimir-Prelog-Weg 3, 8093 Zürich (Switzerland) http://www.carreira.ethz.ch
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25
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26
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Stöhr O, Ritter H. Hyperbranched polyesters based on hydroxyalkyl-lactones via thiol-ene click reaction. POLYM INT 2014. [DOI: 10.1002/pi.4825] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Olesja Stöhr
- Institute of Organic Chemistry and Macromolecular Chemistry; Heinrich-Heine-University of Duesseldorf; Universitaetsstrasse 1 40225 Duesseldorf Germany
| | - Helmut Ritter
- Institute of Organic Chemistry and Macromolecular Chemistry; Heinrich-Heine-University of Duesseldorf; Universitaetsstrasse 1 40225 Duesseldorf Germany
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27
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Yao H, Song L, Liu Y, Tong R. Cascade Michael Addition/Cycloketalization of Cyclic 1,3-Dicarbonyl Compounds: Important Role of the Tethered Alcohol of α,β-Unsaturated Carbonyl Compounds on Reaction Rate and Regioselectivity. J Org Chem 2014; 79:8774-85. [DOI: 10.1021/jo501604e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Hongliang Yao
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Liyan Song
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Yuan Liu
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China
| | - Rongbiao Tong
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China
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28
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Grudniewska A, Hayashi S, Shimizu M, Kato M, Suenaga M, Imagawa H, Ito T, Asakawa Y, Ban S, Kumada T, Hashimoto T, Umeyama A. Opaliferin, a New Polyketide from Cultures of Entomopathogenic Fungus Cordyceps sp. NBRC 106954. Org Lett 2014; 16:4695-7. [DOI: 10.1021/ol502216j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Aleksandra Grudniewska
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
- Department
of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wroclaw, Poland
| | - Sayaka Hayashi
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Mina Shimizu
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Masayuki Kato
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Midori Suenaga
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Hiroshi Imagawa
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Takuya Ito
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Yoshinori Asakawa
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Sayaka Ban
- Nite
Biological Research Center (NBRC), Department of Biotechnology, National Institute of Technology and Evaluation, 2-5-8 Kazusakamatari, Kisarazu 292-0818, Chiba, Japan
| | - Toshio Kumada
- Takeda Giken Service, Ltd., 2-17-85 Jyusouhonmachi, Yodogawa, Osaka 532-8686, Japan
| | - Toshihiro Hashimoto
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Akemi Umeyama
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
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29
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Song L, Yao H, Tong R. Biomimetic Asymmetric Total Syntheses of Spirooliganones A and B. Org Lett 2014; 16:3740-3. [DOI: 10.1021/ol501593m] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Liyan Song
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Hongliang Yao
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Rongbiao Tong
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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30
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von Kieseritzky F, Wang Y, Axelson M. Facile Production Scale Synthesis of (S)-Taniguchi Lactone: A Precious Building-Block. Org Process Res Dev 2014. [DOI: 10.1021/op500096j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Yeliu Wang
- Bejing Honghui Meditech Co Ltd, Bld 10, 9 Tianfu Street CBP, Daxing, 102600 Beijing, China
| | - Magnus Axelson
- Department
of Clinical Chemistry, Karolinska University Hospital, 171 76 Stockholm, Sweden
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31
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Affiliation(s)
- Michael Ostermeier
- Organic
Chemistry Laboratory, University of Bayreuth, 95440 Bayreuth, Germany
| | - Rainer Schobert
- Organic
Chemistry Laboratory, University of Bayreuth, 95440 Bayreuth, Germany
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32
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Zhang L, Wang Y, Song H, Zhou Z, Tang C. Cascade Michael-Intramolecular Transesterification-Elimination Reaction of 3,4-Dihydro-3-nitrochromen-2-ones and β,γ-Unsaturated α-Oxo Esters: An Efficient Access to 2-Pyrone Derivatives. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301876] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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33
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Stöhr O, Ritter H. Networks Based on Poly(α-methylene-δ-valerolactone-co-δ-valerolactone): Crosslinking Through Free-Radical Vinyl Copolymerization. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201300674] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Olesja Stöhr
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University of Duesseldorf, Universitaetsstrasse 1; 40225 Duesseldorf Germany
| | - Helmut Ritter
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University of Duesseldorf, Universitaetsstrasse 1; 40225 Duesseldorf Germany
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34
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35
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Song L, Liu Y, Tong R. Cephalosporolide B serving as a versatile synthetic precursor: asymmetric biomimetic total syntheses of cephalosporolides C, E, F, G, and (4-OMe-)G. Org Lett 2013; 15:5850-3. [PMID: 24195739 DOI: 10.1021/ol402913m] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Cephalosporolide B (Ces-B) was efficiently synthesized and exploited for the first time as a versatile biomimetic synthetic precursor for the chemical syntheses of not only cephalosporolides C, G, and (4-OMe-) G via a challenging diastereoselective oxa-Michael addition but also the structurally unprecedented cephalosporolides E and F via a novel biomimetic ring-contraction rearrangement. These findings provide the first direct chemical evidence that Ces-B may be the true biosynthetic precursor of cephalosporolides.
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Affiliation(s)
- Liyan Song
- Department of Chemistry, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
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36
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The Orthoester Johnson-Claisen Rearrangement in the Synthesis of Bioactive Molecules, Natural Products, and Synthetic Intermediates - Recent Advances. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301033] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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37
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Li Q, Xu YS, Ellis GA, Bugni TS, Tang Y, Hsung RP. Total Syntheses of Proposed (±)-Trichodermatides B and C. Tetrahedron Lett 2013; 54:10.1016/j.tetlet.2013.07.137. [PMID: 24223440 PMCID: PMC3818125 DOI: 10.1016/j.tetlet.2013.07.137] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Total syntheses of putative (±)-trichodermatides B and C are described. These efficient syntheses feature the oxa-[3 + 3] annulation strategy, leading to B and C along with their respective C2-epimers. However, these synthetic samples are spectroscopically very different from the natural products. DFT calculations of C13 chemical shifts are conducted and the predicted values are in good agreement with those of synthetic samples, thereby questioning in the accuracy of structural assignments of trichodermatides B and C.
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Affiliation(s)
- Qian Li
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery and High-Efficiency, Tianjin University, Tianjin, 300072 P. R. China
| | - Yan-Shuang Xu
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery and High-Efficiency, Tianjin University, Tianjin, 300072 P. R. China
| | - Gregory A. Ellis
- Division of Pharmaceutical Sciences and Department of Chemistry, School of Pharmacy, University of Wisconsin, Madison, WI 53705 USA
| | - Timothy S. Bugni
- Division of Pharmaceutical Sciences and Department of Chemistry, School of Pharmacy, University of Wisconsin, Madison, WI 53705 USA
| | - Yu Tang
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery and High-Efficiency, Tianjin University, Tianjin, 300072 P. R. China
| | - Richard P. Hsung
- Division of Pharmaceutical Sciences and Department of Chemistry, School of Pharmacy, University of Wisconsin, Madison, WI 53705 USA
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38
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39
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Yeom HS, Li H, Tang Y, Hsung RP. Total Syntheses of Cannabicyclol, Clusiacyclol A and B, Iso-Eriobrucinol A and B, and Eriobrucinol. Org Lett 2013; 15:3130-3. [DOI: 10.1021/ol401335u] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Hyun-Suk Yeom
- Division of Pharmaceutical Sciences and Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53705, United States, and School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Hui Li
- Division of Pharmaceutical Sciences and Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53705, United States, and School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Yu Tang
- Division of Pharmaceutical Sciences and Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53705, United States, and School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Richard P. Hsung
- Division of Pharmaceutical Sciences and Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53705, United States, and School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, P. R. China
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