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Trippe L, Nava A, Frank A, Nubbemeyer U. Synthesis of Enantiopure 6,11‐Methylene Lipoxin B
4
Methyl Ester. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001591] [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)
- Lukas Trippe
- Organische Chemie Johannes Gutenberg-Universität Mainz Duesbergweg 10–14 D-55128 Mainz Germany
| | - Analuisa Nava
- BASF Lampertheim GmbH Chemiestr. 22 68623 Lampertheim Germany
| | - Andrea Frank
- Organische Chemie Johannes Gutenberg-Universität Mainz Duesbergweg 10–14 D-55128 Mainz Germany
| | - Udo Nubbemeyer
- Organische Chemie Johannes Gutenberg-Universität Mainz Duesbergweg 10–14 D-55128 Mainz Germany
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2
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Schmidt JP, Breit B. Rhodium-Catalyzed Cyclization of Terminal and Internal Allenols: An Atom Economic and Highly Stereoselective Access Towards Tetrahydropyrans. Angew Chem Int Ed Engl 2020; 59:23485-23490. [PMID: 32940396 PMCID: PMC7756761 DOI: 10.1002/anie.202009166] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/22/2020] [Indexed: 01/21/2023]
Abstract
A comprehensive study of a diastereoselective Rh-catalyzed cyclization of terminal and internal allenols is reported. The methodology allows the atom economic and highly syn-selective access to synthetically important 2,4-disubstituted and 2,4,6-trisubstituted tetrahydropyrans (THP). Furthermore, its utility and versatility are demonstrated by a great functional-group compatibility and the enantioselective total synthesis of (-)-centrolobine.
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Affiliation(s)
- Johannes P. Schmidt
- Institute for Organic ChemistryAlbert-Ludwigs-Universität FreiburgAlbertstraße 2179104Freiburg im BreisgauGermany
| | - Bernhard Breit
- Institute for Organic ChemistryAlbert-Ludwigs-Universität FreiburgAlbertstraße 2179104Freiburg im BreisgauGermany
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3
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Schmidt JP, Breit B. Rhodium‐Catalyzed Cyclization of Terminal and Internal Allenols: An Atom Economic and Highly Stereoselective Access Towards Tetrahydropyrans. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009166] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Johannes P. Schmidt
- Institute for Organic Chemistry Albert-Ludwigs-Universität Freiburg Albertstraße 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institute for Organic Chemistry Albert-Ludwigs-Universität Freiburg Albertstraße 21 79104 Freiburg im Breisgau Germany
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4
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Pradhan TR, Mohapatra DK. A synthetic study toward the core structure of (-)-apicularen A. Org Biomol Chem 2018; 16:8810-8818. [PMID: 30403225 DOI: 10.1039/c8ob02301h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A concise synthetic strategy towards the core structure of (-)-apicularen A has been described in an 11-step synthetic sequence from a known intermediate. The key steps include tandem isomerization followed by C-O and C-C bond-forming reactions and iodocyclization strategies for the synthesis of a bicyclic ether embedded in the macrolactone ring. The applied reagent-controlled Keck-Maruoka allylation, Lin Pu alkynylation and Ricket-Diels-Alder reactions were used to simplify the synthetic sequence of related natural products. An intramolecular Yamaguchi lactonization constructed the macrolactone core, while the attempt to install the C11 hydroxyl chiral centre either under catalytic hydrogenation conditions or oxidative conditions was not successful.
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Affiliation(s)
- Tapas R Pradhan
- Organic Synthesis and Process Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India.
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5
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Cao Z, Chen J, Zhu D, Yang Z, Teng W, Liu G, Liu B, Tao C. Regiospecific Synthesis of Three Quercetin O-β-Glucosides of N-Acetylglucosamine. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15232706115112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The regiospecific synthesis of three quercetin O-β-glucosides of N-acetylglucosamine has been achieved in good yield. Selective di-and tri- O-benzylation of quercetin followed by O-glycosylation with 2-acetamido-3,4,6-tri- O-acetyl-2-deoxy-α-D-glucopyranosyl chloride under phase-transfer catalysis conditions yielded, after deacetylation and debenzylation, 3-, 3′- and 4′-glycosylated quercetin.
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Affiliation(s)
- Zhiling Cao
- Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Institute of Marine Resources, Huaihai Institute of Technology Lianyungang 222005, PR China
| | - Jing Chen
- Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Institute of Marine Resources, Huaihai Institute of Technology Lianyungang 222005, PR China
| | - Dandan Zhu
- Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Institute of Marine Resources, Huaihai Institute of Technology Lianyungang 222005, PR China
| | - Zongnan Yang
- Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Institute of Marine Resources, Huaihai Institute of Technology Lianyungang 222005, PR China
| | - Wenqi Teng
- Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Institute of Marine Resources, Huaihai Institute of Technology Lianyungang 222005, PR China
| | - Gaofeng Liu
- Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Institute of Marine Resources, Huaihai Institute of Technology Lianyungang 222005, PR China
| | - Bing Liu
- Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Institute of Marine Resources, Huaihai Institute of Technology Lianyungang 222005, PR China
| | - Chuanzhou Tao
- Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Institute of Marine Resources, Huaihai Institute of Technology Lianyungang 222005, PR China
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6
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Abstract
Kanamienamide is a novel enol ether containing enamide with a single digit micromolar inhibitory activity against cancer cell lines. An efficient and convergent total synthesis of kanamienamide has been developed for the first time, which features a Cu-mediated amide coupling with vinyl iodide at the late stage. Other key transformations include Evans asymmetric alkylation, CBS asymmetric reduction, ring-closing metathesis reaction, and Stork-Zhao-Wittig olefination. This strategy is amenable for facile analogue preparation and SAR studies.
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Affiliation(s)
- D Prabhakar Reddy
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University , Chongqing 401331, P.R. China
| | - Ning Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University , Chongqing 401331, P.R. China
| | - Zhimei Yu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University , Chongqing 401331, P.R. China
| | - Zhen Wang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University , Chongqing 401331, P.R. China
| | - Yun He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University , Chongqing 401331, P.R. China
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7
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Gil A, Albericio F, Álvarez M. Role of the Nozaki–Hiyama–Takai–Kishi Reaction in the Synthesis of Natural Products. Chem Rev 2017. [DOI: 10.1021/acs.chemrev.7b00144] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Alejandro Gil
- ChemBio Lab, Barcelona Science Park, Baldiri Reixac 10, E-08028 Barcelona, Spain
- CIBER-BBN,
Networking
Centre on Bioengineering, Biomaterials and Nanomedicine, Barcelona Science Park, Baldiri Reixac 10, 08028 Barcelona, Spain
| | - Fernando Albericio
- ChemBio Lab, Barcelona Science Park, Baldiri Reixac 10, E-08028 Barcelona, Spain
- CIBER-BBN,
Networking
Centre on Bioengineering, Biomaterials and Nanomedicine, Barcelona Science Park, Baldiri Reixac 10, 08028 Barcelona, Spain
- University of Kwa-Zulu-Natal, 4001, Durban, South Africa
| | - Mercedes Álvarez
- ChemBio Lab, Barcelona Science Park, Baldiri Reixac 10, E-08028 Barcelona, Spain
- CIBER-BBN,
Networking
Centre on Bioengineering, Biomaterials and Nanomedicine, Barcelona Science Park, Baldiri Reixac 10, 08028 Barcelona, Spain
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8
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Clarke PA, Nasir NM, Sellars PB, Peter AM, Lawson CA, Burroughs JL. Synthesis of 2,6-trans- and 3,3,6-trisubstituted tetrahydropyran-4-ones from Maitland-Japp derived 2H-dihydropyran-4-ones: a total synthesis of diospongin B. Org Biomol Chem 2016; 14:6840-52. [PMID: 27340028 DOI: 10.1039/c6ob01182a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
6-Substituted-2H-dihydropyran-4-one products of the Maitland-Japp reaction have been converted into tetrahydropyrans containing uncommon substitution patterns. Treatment of 6-substituted-2H-dihydropyran-4-ones with carbon nucleophiles led to the formation of tetrahydropyran rings with the 2,6-trans-stereochemical arrangement. Reaction of the same 6-substituted-2H-dihydropyran-4-ones with l-Selectride led to the formation of 3,6-disubstituted tetrahydropyran rings, while trapping of the intermediate enolate with carbon electrophiles in turn led to the formation 3,3,6-trisubstituted tetrahydropyran rings. The relative stereochemical configuration of the new substituents was controlled by the stereoelectronic preference for pseudo-axial addition of the nucleophile and trapping of the enolate from the opposite face. Application of these methods led to a synthesis of the potent anti-osteoporotic diarylheptanoid natural product diospongin B.
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Affiliation(s)
- Paul A Clarke
- Department of Chemistry, University of York, Heslington, York, North Yorks YO10 5DD, UK.
| | - Nadiah Mad Nasir
- Department of Chemistry, University of York, Heslington, York, North Yorks YO10 5DD, UK.
| | - Philip B Sellars
- Department of Chemistry, University of York, Heslington, York, North Yorks YO10 5DD, UK.
| | - Alejandra M Peter
- Department of Chemistry, University of York, Heslington, York, North Yorks YO10 5DD, UK.
| | - Connor A Lawson
- Department of Chemistry, University of York, Heslington, York, North Yorks YO10 5DD, UK.
| | - James L Burroughs
- Department of Chemistry, University of York, Heslington, York, North Yorks YO10 5DD, UK.
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9
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Wang HY, Kato A, Kinami K, Li YX, Fleet GWJ, Yu CY. Concise synthesis of calystegines B2 and B3via intramolecular Nozaki-Hiyama-Kishi reaction. Org Biomol Chem 2016; 14:4885-96. [PMID: 27161660 DOI: 10.1039/c6ob00697c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The key step in the concise syntheses of calystegine B2 and its C-2 epimer calystegine B3 was the construction of cycloheptanone 8via an intramolecular Nozaki-Hiyama-Kishi (NHK) reaction of 9, an aldehyde containing a Z-vinyl iodide. Vinyl iodide 9 was obtained by the Stork olefination of aldehyde 10, derived from carbohydrate starting materials. Calystegines B2 (3) and B3 (4) were synthesized from d-xylose and l-arabinose derivatives respectively in 11 steps in excellent overall yields (27% and 19%).
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Affiliation(s)
- Hong-Yao Wang
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
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10
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Kuai C, Wang L, Cui H, Shen J, Feng Y, Cui X. Efficient and Selective Synthesis of (E)-Enamides via Ru(II)-Catalyzed Hydroamidation of Internal Alkynes. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01791] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Changsheng Kuai
- Engineering Research Center
of Molecular Medicine, Ministry of Education, Key Laboratory of Xiamen
Marine and Gene Drugs, Institute of Molecular Medicine and School
of Biomedical Sciences, Huaqiao University, Xiamen 361021, China
| | - Lianhui Wang
- Engineering Research Center
of Molecular Medicine, Ministry of Education, Key Laboratory of Xiamen
Marine and Gene Drugs, Institute of Molecular Medicine and School
of Biomedical Sciences, Huaqiao University, Xiamen 361021, China
| | - Haoyi Cui
- Engineering Research Center
of Molecular Medicine, Ministry of Education, Key Laboratory of Xiamen
Marine and Gene Drugs, Institute of Molecular Medicine and School
of Biomedical Sciences, Huaqiao University, Xiamen 361021, China
| | - Jinhai Shen
- Engineering Research Center
of Molecular Medicine, Ministry of Education, Key Laboratory of Xiamen
Marine and Gene Drugs, Institute of Molecular Medicine and School
of Biomedical Sciences, Huaqiao University, Xiamen 361021, China
| | - Yadong Feng
- Engineering Research Center
of Molecular Medicine, Ministry of Education, Key Laboratory of Xiamen
Marine and Gene Drugs, Institute of Molecular Medicine and School
of Biomedical Sciences, Huaqiao University, Xiamen 361021, China
| | - Xiuling Cui
- Engineering Research Center
of Molecular Medicine, Ministry of Education, Key Laboratory of Xiamen
Marine and Gene Drugs, Institute of Molecular Medicine and School
of Biomedical Sciences, Huaqiao University, Xiamen 361021, China
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11
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Uenishi J, Ida A, Hoshiya N. Investigation of Pd(II)-Catalyzed Cyclization of Chiral θ-Hydroxy-α,β,γ,δ-unsaturated Dienol. HETEROCYCLES 2015. [DOI: 10.3987/com-14-s(k)77] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Abstract
In this article strategies for the design and synthesis of natural product analogues are summarized and illustrated with some selected examples.
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Affiliation(s)
- Martin E. Maier
- Institut für Organische Chemie
- Eberhard Karls Universität Tübingen
- 72076 Tübingen
- Germany
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13
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Feng C, Loh TP. Rhodium(III)-Catalyzed Cross-Coupling of Alkenylboronic Acids and N-Pivaloyloxylamides. Org Lett 2014; 16:3444-7. [DOI: 10.1021/ol501309e] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Chao Feng
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371
| | - Teck-Peng Loh
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371
- Department
of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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14
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Kunitake M, Oshima T, Konoki K, Ebine M, Torikai K, Murata M, Oishi T. Synthesis and biological activity of the C'D'E'F' ring system of maitotoxin. J Org Chem 2014; 79:4948-62. [PMID: 24810995 DOI: 10.1021/jo5005235] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Stereoselective synthesis of the C'D'E'F' ring system of maitotoxin was achieved starting from the E' ring through successive formation of the D' and C' rings based on SmI2-mediated reductive cyclization. Construction of the F' ring was accomplished via Suzuki-Miyaura cross-coupling with a side chain fragment and Pd(II)-catalyzed cyclization of an allylic alcohol. The C'D'E'F' ring system inhibited maitotoxin-induced Ca(2+) influx in rat glioma C6 cells with an IC50 value of 59 μM.
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Affiliation(s)
- Masahiro Kunitake
- Department of Chemistry, Faculty and Graduate School of Sciences, Kyushu University , 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
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15
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Nasir NM, Ermanis K, Clarke PA. Strategies for the construction of tetrahydropyran rings in the synthesis of natural products. Org Biomol Chem 2014; 12:3323-35. [PMID: 24744139 DOI: 10.1039/c4ob00423j] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This review focuses on the methodology used for the construction of tetrahydropyran (THP) rings in the synthesis of natural products over the last seven years. While methods like cyclisation onto oxocarbenium ions, reduction of cyclic hemi-ketals, Michael reactions, hetero-Diels-Alder cycloadditions and cyclisations onto epoxides continue to find application, several other strategies including metal-mediated cyclisations, ring-closing metathesis, radical cyclisations and carbocation cyclisations have also found use. This review is intended to provide an overview of the area for those who are unfamiliar, and to refresh and remind those who do work in the area of the exciting developments in the field.
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Affiliation(s)
- Nadiah Mad Nasir
- Department of Chemistry, University of York, Heslington, York, North Yorks YO10 5DD, UK.
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16
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Hussain A, Yousuf SK, Mukherjee D. Importance and synthesis of benzannulated medium-sized and macrocyclic rings (BMRs). RSC Adv 2014. [DOI: 10.1039/c4ra07434c] [Citation(s) in RCA: 129] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Cyclic molecular frameworks, especially the benzannulated medium-sized and macrocyclic ring (BMR) systems, constitute an integral component of a large number of biologically significant natural or synthetic molecules.
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Affiliation(s)
- Altaf Hussain
- Acedemy of Scientific and Innovative Research (AcSIR)
- New Delhi, India
- Indian Institute of Integrative Medicine (CSIR-IIIM)
- , India
| | - S. K. Yousuf
- Indian Institute of Integrative Medicine (CSIR-IIIM)
- , India
| | - Debaraj Mukherjee
- Acedemy of Scientific and Innovative Research (AcSIR)
- New Delhi, India
- Indian Institute of Integrative Medicine (CSIR-IIIM)
- , India
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17
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Li A, Zhao L, Hao J, Tao Q, Ma R, Zhang Z, An Y, Shi L. A strategy to stabilize the confined chiral TPPS J-aggregate by ionic block copolymer. Colloid Polym Sci 2013. [DOI: 10.1007/s00396-013-3046-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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18
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Makabe H. Stereoselective Aminopalladation and Oxypalladation and Their Application to the Synthesis of Natural Products. Nat Prod Commun 2013. [DOI: 10.1177/1934578x1300800728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Stereoselective aminopalladation and oxypalladation are very important approaches for the synthesis of various natural products which contain N- and O-hetero-alicycles. The author has reviewed recent progress of synthesis of natural products using Pd(II)-catalyzed aminopalladation and oxypalladation including our work within this decade.
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Affiliation(s)
- Hidefumi Makabe
- Graduate School of Agriculture Sciences of Functional Foods Shinshu University 8304 Minami-minowa Kami-ina Nagano 399-4598 Japan
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19
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Uenishi J, Kawai N. Stereochemistry and Synthetic Applications of Intramolecular Chirality Transfer Reaction Promoted by PdII-catalyst. J SYN ORG CHEM JPN 2013. [DOI: 10.5059/yukigoseikyokaishi.71.912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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20
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Abstract
Myxobacteria are an excellent source of novel secondary metabolites with a range of biological activities. This review details the synthesis of several examples of these natural products. The total synthesis of all the members of the crocacin family is presented where the stereochemistry of the stereotetrad was set via a tin-mediated syn-aldol reaction followed by selective anti-reduction. The other key step in the route to crocacins A, B, and D was the introduction of the enamide functionality by acylation of an enecarbamate. A formal synthesis of apicularen A is also discussed, which involved a base-induced macrolactonization reaction and a transannular oxy-Michael cyclization to secure the tetrahydropyran ring. Finally, the total synthesis of deshydroxyajudazol B is summarized. This route details a modified approach to the 2,4-disubstituted oxazole, and a Diels–Alder reaction followed by aromatization was utilized to form the isochromanone moiety. A highly efficient Sonogashira coupling followed by partial reduction then gave deshydroxyajudazol B.
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Balan D, Burns CJ, Fisk NG, Hügel H, Huang DCS, Segal D, White C, Wagler J, Rizzacasa MA. Synthesis and biological evaluation of a potent salicylihalamide A lactam analogue. Org Biomol Chem 2012; 10:8147-53. [DOI: 10.1039/c2ob26649k] [Citation(s) in RCA: 10] [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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