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Ning Y, Wang Y, Gui J. Bioinspired Two-Phase Synthesis of Gibbosterol A. JACS AU 2024; 4:635-641. [PMID: 38425898 PMCID: PMC10900487 DOI: 10.1021/jacsau.3c00698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/22/2023] [Accepted: 12/26/2023] [Indexed: 03/02/2024]
Abstract
The disecosteroid natural product gibbosterol A-which has a 14/5-bicyclic framework, a high oxidation state, and a twisted trans-9,11-epoxy motif-is the first water-soluble 5,10:8,9-disecosteroid. Herein, we report a bioinspired two-phase synthesis of this natural product in only 15 steps from inexpensive ergosterol. In the first (isomerase) phase, the core bicyclic framework is rapidly installed by the skeletal reorganization of ergosterol endoperoxide via a ruthenium-catalyzed dual C-C bond fragmentation. In the second (oxidase) phase, chemoselective, regioselective, and stereoselective redox transformations precisely introduce the requisite oxygenated functional groups. This work demonstrates that the ingenious two-phase synthesis logic that has been applied to terpenes is also a powerful strategy for steroid synthesis.
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Affiliation(s)
- Yuhan Ning
- State Key Laboratory of Chemical
Biology, Shanghai Institute of Organic Chemistry, University of Chinese
Academy of Sciences, Chinese Academy of
Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yun Wang
- State Key Laboratory of Chemical
Biology, Shanghai Institute of Organic Chemistry, University of Chinese
Academy of Sciences, Chinese Academy of
Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jinghan Gui
- State Key Laboratory of Chemical
Biology, Shanghai Institute of Organic Chemistry, University of Chinese
Academy of Sciences, Chinese Academy of
Sciences, 345 Lingling Road, Shanghai 200032, China
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Ning Y, Tian H, Gui J. Biogenesis-Guided Synthesis and Structural Revision of Sarocladione Enabled by Ruthenium-Catalyzed Endoperoxide Fragmentation. Angew Chem Int Ed Engl 2021; 60:11222-11226. [PMID: 33682234 DOI: 10.1002/anie.202101451] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/21/2021] [Indexed: 11/11/2022]
Abstract
Sarocladione is the first 5,10:8,9-diseco-steroid with a 14-membered macrocyclic diketone framework to have been isolated from a natural source. Herein we report a biomimetic synthesis of sarocladione in only two or seven steps from inexpensive, commercially available ergosterol. The key feature of this synthesis was a novel ruthenium-catalyzed endoperoxide fragmentation, which transformed various saturated endoperoxides into olefinic diketones by cleavage of two C-C bonds. This synthesis allowed us to unambiguously determine the structure of sarocladione and provided experimental support for its revised biosynthetic origin. This work also vividly demonstrates that consideration of the biogenesis is a powerful tool for elucidating the structures of natural products.
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Affiliation(s)
- Yuhan Ning
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Hailong Tian
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Jinghan Gui
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
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Ning Y, Tian H, Gui J. Biogenesis‐Guided Synthesis and Structural Revision of Sarocladione Enabled by Ruthenium‐Catalyzed Endoperoxide Fragmentation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101451] [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)
- Yuhan Ning
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Hailong Tian
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Jinghan Gui
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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Zhang M, Li W, Li T. Generation and detection of levuglandins and isolevuglandins in vitro and in vivo. Molecules 2011; 16:5333-48. [PMID: 21705973 PMCID: PMC6264246 DOI: 10.3390/molecules16075333] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 06/21/2011] [Accepted: 06/21/2011] [Indexed: 02/02/2023] Open
Abstract
Levuglandins (LGs) and isolevuglandins (isoLGs), formed by rearrangement of endoperoxide intermediates generated through the cyclooxygenase and free radical induced oxidation of polyunsaturated fatty acids (PUFAs), are extraordinarily reactive, forming covalent adducts incorporating protein lysyl ε-amino groups. Because they accumulate, these adducts provide a dosimeter of oxidative injury. This review provides an updated and comprehensive overview of the generation of LG/isoLG in vitro and in vivo and the detection methods for the adducts of LG/isoLG and biological molecules in vivo.
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Affiliation(s)
- Ming Zhang
- Reproductive Medicine Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; E-Mail: (M.Z.)
| | - Wei Li
- Office of the Texas State Chemist, Texas A&M University, College Station, TX 77845, USA; E-Mail: (W.L.)
| | - Tao Li
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Author to whom correspondence should be addressed; E-Mail: ; Tel: +86-278-374-6960
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Riveira MJ, La-Venia A, Mischne MP. Advances in bridged 1,2,4-trioxane-based chemistry. A divergent approach to oxa-heterocycles based on ambident reactivity. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2009.11.135] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Erden I, Gärtner C. An exceptionally simple and efficient synthesis of 6-methyl-6-vinylfulvene, and its oxidative transformations. Tetrahedron Lett 2009; 50:2381-2383. [PMID: 20161263 PMCID: PMC2700951 DOI: 10.1016/j.tetlet.2009.02.221] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A new efficient synthesis of 6-methyl-6-vinylfulvene was developed, starting from the 6-(2-hydroxyethyl)-6-methylfulvene. With larger quantities of the title compound in hand, its photooxygenation with singlet oxygen was studied. Cyclization of the cyclopropanone intermediate to both vinyl moieties in the unsaturated system was observed, whereas the saturated endoperoxide gave mostly the cyclopentenone derivative. m-CPBA attacks exclusively the endocyclic double bonds and gives the 3-cyclopentenones via the unstable epoxides.
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Affiliation(s)
- Ihsan Erden
- San Francisco State University, Department of Chemistry and Biochemistry, 1600 Holloway Avenue, San Francisco, CA 94132, USA
| | - Christian Gärtner
- San Francisco State University, Department of Chemistry and Biochemistry, 1600 Holloway Avenue, San Francisco, CA 94132, USA
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Emerzian MA, Davenport W, Song J, Li J, Erden I. Palladium Catalyzed Cyclopropanation of Unsaturated Endoperoxides. A New Peroxide Preserving Reaction. Adv Synth Catal 2009; 351:999-1004. [PMID: 23966902 DOI: 10.1002/adsc.200800804] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Unsaturated bicyclic endoperoxides are efficiently cyclopropanated with excess diazomethane in the presence of catalytic Pd(OAc)2 in a stereoselective manner. This method represents a new peroxide preserving transformation. Whereas the unsaturated endoperoxides in the [2.2.1] series are attacked by the carbene from the exo face, the analogs with larger bridges are preferentially attacked from the face syn to the peroxo bridge. Only in the case of the benzannelated [2.2.2] system the attack occurs exclusively from the face proximal to the benzene ring. Certain strained cyclopropanated endoperoxides are reduced by diazomethane to give cis-diols. 1-Methylfuran endoperoxide gives rise to cis-1-formyl-2-acetylcyclopropane in excellent yield.
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Affiliation(s)
- Michael A Emerzian
- San Francisco State University, Department of Chemistry and Biochemistry, 1600 Holloway Avenue, San Francisco, CA 94132, USA
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Yamane T, Makino K, Umezawa N, Kato N, Higuchi T. Extreme Rate Acceleration by Axial Thiolate Coordination on the Isomerization of Endoperoxide Catalyzed by Iron Porphyrin. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200800137] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Yamane T, Makino K, Umezawa N, Kato N, Higuchi T. Extreme Rate Acceleration by Axial Thiolate Coordination on the Isomerization of Endoperoxide Catalyzed by Iron Porphyrin. Angew Chem Int Ed Engl 2008; 47:6438-40. [DOI: 10.1002/anie.200800137] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Magri DC, Workentin MS. A radical-anion chain mechanism following dissociative electron transfer reduction of the model prostaglandin endoperoxide, 1,4-diphenyl-2,3-dioxabicyclo[2.2.1]heptane. Org Biomol Chem 2008; 6:3354-61. [DOI: 10.1039/b809356c] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Adam W, Bloodworth AJ. Chemistry of saturated bicyclic peroxides (the prostaglandin connection). Top Curr Chem (Cham) 2006; 97:121-58. [PMID: 7027536 DOI: 10.1007/bfb0037042] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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12
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Posner GH, Tao X, Cumming JN, Klinedinst D, Shapiro TA. Antimalarially potent, easily prepared, fluorinated endoperoxides. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)01625-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Cyclopropanones derived from saturated fulvene endoperoxides: Synthesis of highly oxygenated organic compounds. Tetrahedron Lett 1993. [DOI: 10.1016/s0040-4039(00)77596-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Chemistry of singlet oxygen: Isolation and characterization of a stable allene oxide from a fulvene endoperoxide. Tetrahedron Lett 1993. [DOI: 10.1016/s0040-4039(00)91767-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Erden I, Amputch MA. Thermal decomposition of 7-isopropylidene-2,3-dioxabicyclo[2.2.1]heptane: Evidence for allene oxide and cyclopropanone intermediates. Tetrahedron Lett 1987. [DOI: 10.1016/s0040-4039(00)96382-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Andersen NH, Hartzell CJ. High-field 1H NMR studies of prostaglandin H2 and its decomposition pathways. Biochem Biophys Res Commun 1984; 120:512-9. [PMID: 6587849 DOI: 10.1016/0006-291x(84)91284-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Prostaglandin H2 displays at 500 MHz a detailed 1H-NMR in which all methylene groups are non-equivalent in C6D6 solution. The spectrum was assigned by analogy to isosteric structures. The dissymmetric perturbation and steric hindrance of the bicyclo [2.2.1] core caused by the side-chains provides a rationale for the selective fragmentations which PGH2 undergoes. Purified PGH2 is considerably more robust than previous literature accounts suggest. The following transformations were monitored by 1H-NMR: 1) O-O bond cleavage by Ph3P , 2) aqueous media fragmentation to PGE2 and PGD2, 3) base catalyzed fragmentation to ketoaldehydes , and 4) thermolysis attempts.
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Novel thermolytic transformations of n-benzoyl 2-aza 3-oxa bicyclo(2.2.1)hept-5-ene and n-benzoyl 2-aza 3-oxa bicyclo(2.2.1)heptane. Tetrahedron 1981. [DOI: 10.1016/s0040-4020(01)92441-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Saito I, Tamoto K, Katsumura A, Sugiyama H, Matsuura T. SINGLET-OXYGEN REACTIONS OF 1,4-CYCLOHEXADIENE. A SYNTHETIC APPROACH TO THE BENZENE-1,4-ENDOPEROXIDE. CHEM LETT 1978. [DOI: 10.1246/cl.1978.127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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8,9-dioxibicyclo[5.2.1]decane. A strain-free homologue of the nucleus in prostaglandin eudoperoxides. Tetrahedron Lett 1978. [DOI: 10.1016/s0040-4039(01)94943-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Turner JA, Herz W. Fe(II)-induced decomposition of epidioxides. A chemical model for prostaglandin E, prostacyclin and thromboxane biosynthesis. EXPERIENTIA 1977; 33:1133-4. [PMID: 891849 DOI: 10.1007/bf01922283] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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