1
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Zhang YP, Du S, Ma Y, Zhan W, Chen W, Yang X, Zhang H. Structure-Unit-Based Total Synthesis of (-)-Sinulochmodin C. Angew Chem Int Ed Engl 2024; 63:e202315481. [PMID: 38009457 DOI: 10.1002/anie.202315481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/21/2023] [Accepted: 11/24/2023] [Indexed: 11/28/2023]
Abstract
Herein we report a structure-unit-based asymmetric total synthesis of sinulochmodin C, a norcembranoid diterpenoid bearing a transannular strained ether bridge β-keto tetrahydrofuran moiety. Our synthetic route features an intramolecular double Michael addition to construct stereospecifically the [7,6,5,5] tetracyclic skeleton, a vinylogous hydroxylation/oxidation procedure or a stereospecific epoxide opening/oxidation sequence to establish the γ-keto enone intermediate, a Lewis acid/Brønsted acid mediated transannular oxa-Michael addition to fuse the β-keto tetrahydrofuran moiety, a Mukaiyama hydration/Pd-C hydrogenation to reverse the C1-configuration of the isopropenyl unit, and a bioinspired transformation of sinulochmodin C into scabrolide A.
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Affiliation(s)
- Yi-Peng Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, Yunnan Characteristic Plant Extraction Laboratory, School of Pharmacy, Yunnan University, Kunming, 650091, P. R. China
| | - Shufei Du
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, Yunnan Characteristic Plant Extraction Laboratory, School of Pharmacy, Yunnan University, Kunming, 650091, P. R. China
| | - Ying Ma
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, Yunnan Characteristic Plant Extraction Laboratory, School of Pharmacy, Yunnan University, Kunming, 650091, P. R. China
| | - Weixin Zhan
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, Yunnan Characteristic Plant Extraction Laboratory, School of Pharmacy, Yunnan University, Kunming, 650091, P. R. China
| | - Wen Chen
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, Yunnan Characteristic Plant Extraction Laboratory, School of Pharmacy, Yunnan University, Kunming, 650091, P. R. China
| | - Xiaodong Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, Yunnan Characteristic Plant Extraction Laboratory, School of Pharmacy, Yunnan University, Kunming, 650091, P. R. China
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, Yunnan Characteristic Plant Extraction Laboratory, School of Pharmacy, Yunnan University, Kunming, 650091, P. R. China
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2
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Kataria P, Nomula R, Kontham R. Studies directed toward the synthesis of hedycoropyrans: total synthesis of des-hydroxy (-)-hedycoropyran B ( ent-rhoiptelol B). Org Biomol Chem 2022; 20:444-463. [PMID: 34904991 DOI: 10.1039/d1ob01972d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A full account of our efforts directed towards the synthesis of the diarylheptanoid-derived natural products hedycoropyrans that led to the total synthesis of ent-rhoiptelol B is described. In this endeavor, we have attempted two distinct synthetic strategies to access hedycoropyrans A and B, which led us to establish a facile synthetic route for des-hydroxy (-)-hedycoropyran B (ent-rhoiptelol B) from simple and readily accessible building blocks of 4-allylanisole and vanillin, employing Sharpless asymmetric epoxidation, CBS reduction, and an intramolecular AgOTf-catalyzed oxa-Michael reaction of suitably functionalized hydroxy-ynone as key transformations. The investigations disclosed herein will provide insights into designing novel synthetic routes for THP-DAH-derived natural products.
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Affiliation(s)
- Priyanka Kataria
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Rajesh Nomula
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, 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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3
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Ariyoshi S, Sakaguchi K, Nishimura T. Stereoselective Synthesis of Polysubstituted Tetrahydropyranones via Acid-Promoted Cyclization of β-Silyl-γ-ethylidene-γ-butyrolactones with Aldehydes and Ketones. J Org Chem 2021; 86:11884-11894. [PMID: 34387502 DOI: 10.1021/acs.joc.1c01284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
β-Silyl-γ-ethylidene-γ-butyrolactone upon one-pot treatment with aldehydes and ketones in the presence of Lewis acids underwent a tandem Hosomi-Sakurai/Prins cyclization to give polysubstituted tetrahydropyranones stereoselectively. Various aldehydes and ketones can be used in this reaction to produce the corresponding tetrahydropyranones. The optical purity of the starting γ-butyrolactone was substantially retained in the resulting tetrahydropyranones.
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Affiliation(s)
- Shoma Ariyoshi
- Division of Molecular Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Osaka 558-8585, Sumiyoshi, Japan
| | - Kazuhiko Sakaguchi
- Division of Molecular Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Osaka 558-8585, Sumiyoshi, Japan
| | - Takahiro Nishimura
- Division of Molecular Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Osaka 558-8585, Sumiyoshi, Japan
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4
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Scheeff S, Rivière S, Ruiz J, Dedenbach S, Menche D. Modular Total Synthesis of iso-Archazolids and Archazologs. J Org Chem 2021; 86:10190-10223. [PMID: 34293866 DOI: 10.1021/acs.joc.1c00946] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Full details on the design, development, and successful implementation of suitable synthetic strategies directed toward the total synthesis of iso-archazolids and archazologs are reported. Both a biomimetic and a multistep total synthesis of iso-archazolid B, the most potent and least abundant archazolid, are described. The bioinspired conversion from archazolid B was realized by a high-yielding 1,8-Diazabicyclo[5.4.0]undec-7-ene catalyzed one-step double-bond shift. A highly stereoselective total synthesis was accomplished in 25 steps, involving a sequence of highly stereoselective aldol reactions, an efficient aldol condensation to forge two elaborate fragments, and a challenging ring-closing metathesis macrocyclization with an unusual Stewart-Grubbs catalyst. These strategies proved to be generally useful and could be successfully implemented for the preparation of three novel iso-archazolids as well as five novel archazologs, lacking the thiazole side chain. A wide variety of further archazolids and archazologs may now be targeted for exploration of the promising anticancer potential of these polyketide macrolides.
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Affiliation(s)
- Stephan Scheeff
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
| | - Solenne Rivière
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
| | - Johal Ruiz
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
| | - Simon Dedenbach
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
| | - Dirk Menche
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
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5
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Tanaka F, Pasha M, Sohail M. Intramolecular Oxa-Michael Reactions of Aldols Generated from Enones and Isatins to Afford Spirooxindole Tetrahydropyrans. HETEROCYCLES 2020. [DOI: 10.3987/com-19-s(f)26] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Ichikawa J, Fuchibe K, Tsuda N, Shigeno K. Construction of Pinpoint-Fluorinated Benzothiophene Frameworks Using Palladium-Catalyzed Cyclization of o-(Fluorovinyl)phenyl-Substituted Thiophenes. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)95] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Nokura Y, Araki Y, Nakazaki A, Nishikawa T. Synthetic Route to Oscillatoxin D and Its Analogues. Org Lett 2017; 19:5992-5995. [DOI: 10.1021/acs.orglett.7b03032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yoshihiko Nokura
- Graduate School
of Bioagricultural
Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Yusuke Araki
- Graduate School
of Bioagricultural
Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Atsuo Nakazaki
- Graduate School
of Bioagricultural
Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Toshio Nishikawa
- Graduate School
of Bioagricultural
Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
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8
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Eiden CG, Aldrich CC. Synthesis of a 3-Amino-2,3-dihydropyrid-4-one and Related Heterocyclic Analogues as Mechanism-Based Inhibitors of BioA, a Pyridoxal Phosphate-Dependent Enzyme. J Org Chem 2017; 82:7806-7819. [PMID: 28682613 DOI: 10.1021/acs.joc.7b00847] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Amiclenomycin (ACM) is a chemically unstable antibiotic with selective activity against Mycobacterium tuberculosis (Mtb) due to mechanism-based inhibition of BioA, a pyridoxal 5'-phosphate (PLP)-dependent aminotransferase. The first-generation ACM analogue dihydro-2-pyridone 1 maintains a similar bioactivation mechanism concluding with covalent labeling of the PLP cofactor. To improve on 1, we report the synthesis of dihydro-4-pyranone 2, dihydro-4-pyridone 3, and dihydro-4-thiopyranone 13, which were rationally designed to boost the rate of enzyme inactivation by lowering the pKa of their α-protons. We employed a unified synthetic strategy for construction of the desired heterocycles featuring α-amino ynone generation followed by 6-endo-dig cyclization. However, competitive 5-exo-dig cyclization, β-elimination of the ynone, and dimerization of the resultant α-amino carbonyls all complicated the syntheses of the dihydro-4-pyranone and dihydro-4-pyridone scaffolds. These obstacles were overcome by Teoc protection of the β-amino group in the assembly of 3 and Boc-MOM protection of the α-amino group in the synthesis of 2, enabling the efficient construction of 2 and 3 in seven steps from commercially available starting materials. Dihydro-4-pyridone 3 possessed improved enzyme inhibition as measured by its kinact value against BioA.
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Affiliation(s)
- Carter G Eiden
- Department of Medicinal Chemistry, University of Minnesota , 308 Harvard Street SE, 8-174 WDH, Minneapolis, Minnesota 55455, United States
| | - Courtney C Aldrich
- Department of Medicinal Chemistry, University of Minnesota , 308 Harvard Street SE, 8-174 WDH, Minneapolis, Minnesota 55455, United States
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9
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Fuwa H. Contemporary Strategies for the Synthesis of Tetrahydropyran Derivatives: Application to Total Synthesis of Neopeltolide, a Marine Macrolide Natural Product. Mar Drugs 2016; 14:E65. [PMID: 27023567 PMCID: PMC4849069 DOI: 10.3390/md14040065] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 03/15/2016] [Accepted: 03/17/2016] [Indexed: 02/07/2023] Open
Abstract
Tetrahydropyrans are structural motifs that are abundantly present in a range of biologically important marine natural products. As such, significant efforts have been paid to the development of efficient and versatile methods for the synthesis of tetrahydropyran derivatives. Neopeltolide, a potent antiproliferative marine natural product, has been an attractive target compound for synthetic chemists because of its complex structure comprised of a 14-membered macrolactone embedded with a tetrahydropyran ring, and twenty total and formal syntheses of this natural product have been reported so far. This review summarizes the total and formal syntheses of neopeltolide and its analogues, highlighting the synthetic strategies exploited for constructing the tetrahydropyran ring.
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Affiliation(s)
- Haruhiko Fuwa
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.
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10
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Hikawa H, Machino Y, Toyomoto M, Kikkawa S, Azumaya I. Cationic palladium(ii)-catalyzed dehydrative nucleophilic substitutions of benzhydryl alcohols with electron-deficient benzenethiols in water. Org Biomol Chem 2016; 14:7038-45. [DOI: 10.1039/c6ob01140c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
An efficient direct nucleophilic substitution of benzhydryl alcohols with electron-deficient benzenethiols using cationic Pd(ii) catalysts as Lewis acids in water is reported.
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Affiliation(s)
- Hidemasa Hikawa
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
| | - Yumo Machino
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
| | - Mariko Toyomoto
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
| | - Shoko Kikkawa
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
| | - Isao Azumaya
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
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11
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Cui HL, Chouthaiwale PV, Yin F, Tanaka F. Reaction-Based Mechanistic Investigations of Asymmetric Hetero-Diels-Alder Reactions of Enones with Isatins Catalyzed by Amine-Based Three-Component Catalyst Systems. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500412] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Hai-Lei Cui
- Chemistry and Chemical Bioengineering Unit; Okinawa Institute of Science and Technology Graduate University; 1919-1 Tancha, Onna Okinawa 904-0495 Japan
| | - Pandurang V. Chouthaiwale
- Chemistry and Chemical Bioengineering Unit; Okinawa Institute of Science and Technology Graduate University; 1919-1 Tancha, Onna Okinawa 904-0495 Japan
| | - Feng Yin
- Chemistry and Chemical Bioengineering Unit; Okinawa Institute of Science and Technology Graduate University; 1919-1 Tancha, Onna Okinawa 904-0495 Japan
| | - Fujie Tanaka
- Chemistry and Chemical Bioengineering Unit; Okinawa Institute of Science and Technology Graduate University; 1919-1 Tancha, Onna Okinawa 904-0495 Japan
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12
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Kitanosono T, Miyo M, Kobayashi S. The combined use of cationic palladium(II) with a surfactant for the C–H functionalization of indoles and pyrroles in water. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.07.044] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Siddiqui IR, Rahila, Shamim S, Rai P, Shireen, Waseem MA, Srivastava A, Srivastava A. Basic Ionic Liquid Promoted Domino Knoevenagel-Thia-Michael Reaction: An Efficient and Multicomponent Strategy for Synthesis of 1,3-Thiazines. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- I. R. Siddiqui
- Laboratory of Green Synthesis, Department of Chemistry; University of Allahabad; Allahabad 211002 India
| | - Rahila
- Laboratory of Green Synthesis, Department of Chemistry; University of Allahabad; Allahabad 211002 India
| | - Shayna Shamim
- Laboratory of Green Synthesis, Department of Chemistry; University of Allahabad; Allahabad 211002 India
| | - Pragati Rai
- Laboratory of Green Synthesis, Department of Chemistry; University of Allahabad; Allahabad 211002 India
| | - Shireen
- Laboratory of Green Synthesis, Department of Chemistry; University of Allahabad; Allahabad 211002 India
| | - Malik A. Waseem
- Laboratory of Green Synthesis, Department of Chemistry; University of Allahabad; Allahabad 211002 India
| | - Arjita Srivastava
- Laboratory of Green Synthesis, Department of Chemistry; University of Allahabad; Allahabad 211002 India
| | - Anjali Srivastava
- Laboratory of Green Synthesis, Department of Chemistry; University of Allahabad; Allahabad 211002 India
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14
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Aaseng JE, Iqbal N, Tungen JE, Sperger CA, Fiksdahl A. 3-Halotetrahydropyran-4-one Derivatives from Homopropargyl Acetal. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.902961] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Jon Erik Aaseng
- a Department of Chemistry , Norwegian University of Science and Technology , Trondheim , Norway
| | - Naseem Iqbal
- a Department of Chemistry , Norwegian University of Science and Technology , Trondheim , Norway
| | - Jørn Eivind Tungen
- a Department of Chemistry , Norwegian University of Science and Technology , Trondheim , Norway
| | - Christian A. Sperger
- a Department of Chemistry , Norwegian University of Science and Technology , Trondheim , Norway
| | - Anne Fiksdahl
- a Department of Chemistry , Norwegian University of Science and Technology , Trondheim , Norway
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15
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16
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Yao H, Song L, Tong R. Total Synthesis of Aculeatin A via Double Intramolecular Oxa-Michael Addition of Secondary/Tertiary Alcohols. J Org Chem 2014; 79:1498-504. [DOI: 10.1021/jo4026868] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hongliang Yao
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Liyan Song
- 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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17
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Tay GC, Gesinski MR, Rychnovsky SD. Formation of highly substituted tetrahydropyranones: application to the total synthesis of cyanolide A. Org Lett 2013; 15:4536-9. [PMID: 23962271 DOI: 10.1021/ol402095g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new tetrahydropyranone synthesis has been developed that leads to cis-2,6-disubstituted 3,3-dimethyltetrahydropyran-4-one rings by condensation of an aldehyde and a hydroxy silyl enol ether. The reaction works with a variety of aldehydes to produce the tetrahydropyranone products in moderate to high yields. This new method was applied to the enantioselective synthesis of cyanolide A and its aglycone.
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Affiliation(s)
- Gidget C Tay
- Department of Chemistry, 1102 Natural Sciences II, University of California-Irvine, Irvine, California 92697, USA
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18
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Ciesielski J, Lebœuf D, Stern HA, Frontier AJ. Gold (III) Chloride-Catalyzed 6- endo- trig Oxa-Michael Addition Reactions for Diastereoselective Synthesis of Fused Tetrahydropyranones. Adv Synth Catal 2013; 355:2077-2082. [PMID: 24032002 PMCID: PMC3767299 DOI: 10.1002/adsc.201300265] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Alkynones were treated with boron trifluoride diethyl etherate to generate β-iodoallenolates, which underwent intramolecular aldol reactions to produce cycloalkenyl alcohols. Diastereoselective oxa-Michael ring closure could then be induced by treatment with a catalytic amount of gold(III) chloride, affording highly functionalized tetrahydropyran-containing ring systems.
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19
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Zhong C, Wang Y, O’Herin C, Young DW. Synthesis of Substituted Morpholines Using Stereodivergent Aza-Michael Reactions Catalyzed by Brønsted Acids. ACS Catal 2013. [DOI: 10.1021/cs400031p] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cheng Zhong
- Chemical
Biology Program, Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, Massachusetts 02142, United States
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts
02138, United States
| | - Yikai Wang
- Chemical
Biology Program, Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, Massachusetts 02142, United States
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts
02138, United States
| | - Conor O’Herin
- Chemical
Biology Program, Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, Massachusetts 02142, United States
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts
02138, United States
| | - Damian W. Young
- Chemical
Biology Program, Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, Massachusetts 02142, United States
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts
02138, United States
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20
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Yao H, Ren J, Tong R. A short and flexible route to tetrahydropyran-4-ones via conjugated nitrile oxidescycloaddition and oxa-Michael cyclization: a concise diastereoselective total synthesis of (±)-diospongin A. Chem Commun (Camb) 2013; 49:193-5. [DOI: 10.1039/c2cc37772a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Athe S, Chandrasekhar B, Roy S, Pradhan TK, Ghosh S. Formal Total Synthesis of (+)-Neopeltolide. J Org Chem 2012; 77:9840-5. [DOI: 10.1021/jo301425c] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sudhakar Athe
- CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | | | - Saumya Roy
- CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | | | - Subhash Ghosh
- CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
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22
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Lee ASY, Lin LS, Chang YT. Synthesis of cis-2,6-tetrahydropyran-4-one via diastereoselectively intramolecular cyclization of β-hydroxy allyl ketone. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.02.076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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23
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Yang F, Ji KG, Zhao SC, Ali S, Ye YY, Liu XY, Liang YM. Brønsted Acid Catalyzed Cycloisomerizations of 5,2-Enyne-1-ones: Highly Regioselective Synthesis of 2,3-Dihydro-4H-pyran-4-ones. Chemistry 2012; 18:6470-4. [DOI: 10.1002/chem.201103771] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 03/08/2012] [Indexed: 11/12/2022]
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24
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Fuwa H. Total Synthesis of Tetrahydropyran-Containing Natural Products Exploiting Intramolecular Oxa-Conjugate Cyclization. HETEROCYCLES 2012. [DOI: 10.3987/rev-12-730] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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25
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Han F, Yang L, Li Z, Xia C. Acidic-functionalized ionic liquid as an efficient, green and reusable catalyst for hetero-Michael addition of nitrogen, sulfur and oxygen nucleophiles to α,β-unsaturated ketones. Org Biomol Chem 2012; 10:346-54. [DOI: 10.1039/c1ob06346d] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Fuwa H, Ichinokawa N, Noto K, Sasaki M. Stereoselective Synthesis of 2,6-Cis-Substituted Tetrahydropyrans: Brønsted Acid-Catalyzed Intramolecular Oxa-Conjugate Cyclization of α,β-Unsaturated Ester Surrogates. J Org Chem 2011; 77:2588-607. [DOI: 10.1021/jo202179s] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Haruhiko Fuwa
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
| | - Naoki Ichinokawa
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
| | - Kenkichi Noto
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
| | - Makoto Sasaki
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
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Zhong C, Wang Y, Hung AW, Schreiber SL, Young DW. Diastereoselective Control of Intramolecular Aza-Michael Reactions Using Achiral Catalysts. Org Lett 2011; 13:5556-9. [DOI: 10.1021/ol202276h] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cheng Zhong
- Chemical Biology Program, Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, Massachusetts 02142, United States, and Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Yikai Wang
- Chemical Biology Program, Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, Massachusetts 02142, United States, and Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Alvin W. Hung
- Chemical Biology Program, Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, Massachusetts 02142, United States, and Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Stuart L. Schreiber
- Chemical Biology Program, Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, Massachusetts 02142, United States, and Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Damian W. Young
- Chemical Biology Program, Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, Massachusetts 02142, United States, and Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
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29
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A new strategy for the synthesis of substituted dihydropyrones and tetrahydropyrones via palladium-catalyzed coupling of thioesters. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.03.114] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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30
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Fang L, Chen Y, Huang J, Liu L, Quan J, Li CC, Yang Z. Formal Synthesis of Cortistatins. J Org Chem 2011; 76:2479-87. [DOI: 10.1021/jo102202t] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lichao Fang
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Yuan Chen
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Jun Huang
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Lianzhu Liu
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Junmin Quan
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Chuang-chuang Li
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Zhen Yang
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), College of Chemistry, Peking University, Beijing 100871, China
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31
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Fujiwara M, Marumoto S, Yagi N, Miyazawa M. Biotransformation of turmerones by Aspergillus niger. JOURNAL OF NATURAL PRODUCTS 2011; 74:86-89. [PMID: 21189039 DOI: 10.1021/np100416v] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Biotransformation studies conducted on (+)-(S)-ar-turmerone (1) and (+)-(S)-dihydro-ar-turmerone (2) by the fungus Aspergillus niger have revealed that 1 was metabolized to give four oxidized metabolites, (+)-(7S)-hydroxydehydro-ar-todomatuic acid (3), (+)-(7S,10E)-12-hydroxydehydro-ar-todomatuic acid (4), (+)-(7S,10E)-7,12-dihydroxydehydro-ar-todomatuic acid (5), and (+)-(7S)-15-carboxy-9,13-epoxy-7-hydroxy-9,13-dehydro-ar-curcumene (6), and (+)-(S)-dihydro-ar-turmerone (2) was metabolized to (+)-7,11-dihydroxy-ar-todomatuic acid (7). Metabolites 3-7 were characterized using spectroscopic techniques. Metabolites 3-7 inhibited acetylcholinesterase (AChE) although less so than the parent substrates.
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Affiliation(s)
- Mai Fujiwara
- Department of Applied Chemistry, Faculty of Science of Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka-shi, Osaka 577-8502, Japan
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32
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Affiliation(s)
- Stephen Hanessian
- Department of Chemistry, Université de Montréal, C. P. 6128, Succ. Centre-Ville, Montréal, QC H3C 3J7, Canada
| | - Thilo Focken
- Department of Chemistry, Université de Montréal, C. P. 6128, Succ. Centre-Ville, Montréal, QC H3C 3J7, Canada
| | - Rupal Oza
- Department of Chemistry, Université de Montréal, C. P. 6128, Succ. Centre-Ville, Montréal, QC H3C 3J7, Canada
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33
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Anderson KR, Atkinson SLG, Fujiwara T, Giles ME, Matsumoto T, Merifield E, Singleton JT, Saito T, Sotoguchi T, Tornos JA, Way EL. Routes for the Synthesis of (2S)-2-Methyltetrahydropyran-4-one from Simple Optically Pure Building Blocks. Org Process Res Dev 2009. [DOI: 10.1021/op900163a] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Kevin R. Anderson
- AstraZeneca R&D Charnwood, Process Research and Development, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom, and Takasago International Corporation, Corporate Research and Development Division, 4-11, 1-Chome, Nishi-Yawata, Hiratsuka City, Kanagawa, Japan
| | - Stéphanie L. G. Atkinson
- AstraZeneca R&D Charnwood, Process Research and Development, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom, and Takasago International Corporation, Corporate Research and Development Division, 4-11, 1-Chome, Nishi-Yawata, Hiratsuka City, Kanagawa, Japan
| | - Takahiro Fujiwara
- AstraZeneca R&D Charnwood, Process Research and Development, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom, and Takasago International Corporation, Corporate Research and Development Division, 4-11, 1-Chome, Nishi-Yawata, Hiratsuka City, Kanagawa, Japan
| | - Melvyn E. Giles
- AstraZeneca R&D Charnwood, Process Research and Development, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom, and Takasago International Corporation, Corporate Research and Development Division, 4-11, 1-Chome, Nishi-Yawata, Hiratsuka City, Kanagawa, Japan
| | - Takaji Matsumoto
- AstraZeneca R&D Charnwood, Process Research and Development, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom, and Takasago International Corporation, Corporate Research and Development Division, 4-11, 1-Chome, Nishi-Yawata, Hiratsuka City, Kanagawa, Japan
| | - Eric Merifield
- AstraZeneca R&D Charnwood, Process Research and Development, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom, and Takasago International Corporation, Corporate Research and Development Division, 4-11, 1-Chome, Nishi-Yawata, Hiratsuka City, Kanagawa, Japan
| | - John T. Singleton
- AstraZeneca R&D Charnwood, Process Research and Development, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom, and Takasago International Corporation, Corporate Research and Development Division, 4-11, 1-Chome, Nishi-Yawata, Hiratsuka City, Kanagawa, Japan
| | - Takao Saito
- AstraZeneca R&D Charnwood, Process Research and Development, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom, and Takasago International Corporation, Corporate Research and Development Division, 4-11, 1-Chome, Nishi-Yawata, Hiratsuka City, Kanagawa, Japan
| | - Tsukasa Sotoguchi
- AstraZeneca R&D Charnwood, Process Research and Development, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom, and Takasago International Corporation, Corporate Research and Development Division, 4-11, 1-Chome, Nishi-Yawata, Hiratsuka City, Kanagawa, Japan
| | - James A. Tornos
- AstraZeneca R&D Charnwood, Process Research and Development, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom, and Takasago International Corporation, Corporate Research and Development Division, 4-11, 1-Chome, Nishi-Yawata, Hiratsuka City, Kanagawa, Japan
| | - Edward L. Way
- AstraZeneca R&D Charnwood, Process Research and Development, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom, and Takasago International Corporation, Corporate Research and Development Division, 4-11, 1-Chome, Nishi-Yawata, Hiratsuka City, Kanagawa, Japan
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Schuler M, Silva F, Bobbio C, Tessier A, Gouverneur V. Gold(I)-Catalyzed Alkoxyhalogenation of β-Hydroxy-α,α-Difluoroynones. Angew Chem Int Ed Engl 2008; 47:7927-30. [DOI: 10.1002/anie.200802162] [Citation(s) in RCA: 142] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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35
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Schuler M, Silva F, Bobbio C, Tessier A, Gouverneur V. Gold(I)-Catalyzed Alkoxyhalogenation of β-Hydroxy-α,α-Difluoroynones. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200802162] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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36
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Yadav JS, Subba Reddy BV, Chaya DN, Narayana Kumar GGKS. Bismuth-triflate-catalyzed Prins–Ritter reaction — An efficient synthesis of 4-amidotetrahydropyrans. CAN J CHEM 2008. [DOI: 10.1139/v08-080] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Bismuth(III) triflate is found to be an effective Lewis acid in catalyzing a three-component reaction of homoallylic alcohol, carbonyl compound, and nitrile at ambient temperature via the Prins–Ritter sequence to furnish 4-amidotetrahydropyrans in high yields, all with cis selectivity. Spirocyclic 4-amidotetrahydropyrans are obtained in case of cyclic ketones.Key words: Prins cyclization, bismuth(III) triflate, homoallyl alcohol, 4-amidotetrahydropyrans.
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37
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Synthesis of six-membered oxygenated heterocycles through carbon–oxygen bond-forming reactions. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.11.092] [Citation(s) in RCA: 212] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Yokota M, Fujita D, Ichikawa J. Activation of 1,1-Difluoro-1-alkenes with a Transition-Metal Complex: Palladium(II)-Catalyzed Friedel–Crafts-Type Cyclization of 4,4-(Difluorohomoallyl)arenes. Org Lett 2007; 9:4639-42. [PMID: 17914837 DOI: 10.1021/ol702279w] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cationic palladium(II) ([Pd(MeCN)4](BF4)2) provides the first transition-metal-catalyzed method for electrophilic activation of electron-deficient 1,1-difluoro-1-alkenes, which allows their Friedel-Crafts-type cyclization with an intramolecular aryl group via a Wacker-type process. By using BF3.OEt2, the cyclization was effected by a catalytic amount of the palladium without its reoxidation.
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Affiliation(s)
- Misaki Yokota
- Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
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