1
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Dar TA, Bhat MY, Sakander N, Ahmed QN. Triflic Anhydride-Mediated Approach to Furo[3,2- b]furans from Diacetonide Protected Furanoses. J Org Chem 2024; 89:13016-13025. [PMID: 39240061 DOI: 10.1021/acs.joc.4c01067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2024]
Abstract
Trifluoromethanesulfonic anhydride (Tf2O) exhibits excellent reactivity as an electrophile, serving as a highly versatile reagent in diverse chemical transformations. Herein, we report an operationally simple, efficient, unique, and practical one-step strategy for synthesizing diverse valuable structures bearing furo[3,2-b]furans core leveraging Tf2O's promoted reactivity of nitriles with diacetonide protected furanose. Furthermore, we demonstrate the potential of furo[3,2-b]furan as a precursor for complex structures through 1,3-dipolar cycloaddition.
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Affiliation(s)
- Tariq Ahmad Dar
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, Jammu and Kashmir 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Mohammad Yaqoob Bhat
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, Jammu and Kashmir 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Norein Sakander
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, Jammu and Kashmir 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Qazi Naveed Ahmed
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, Jammu and Kashmir 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
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2
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Hicks H, Brown DS, Sam Chan HS, Sousa BA, Christensen KE, Burton JW. Total Synthesis and Structure Confirmation of ( E) and ( Z)-Ocellenyne. Org Lett 2022; 24:9174-9178. [PMID: 36508492 PMCID: PMC9791679 DOI: 10.1021/acs.orglett.2c03524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The (E/Z)-ocellenynes are C15 dibrominated Laurencia natural products whose structures have been subject to several reassignments on the basis of extensive NMR analysis, biosynthetic postulates, and DFT calculations. Herein, we report the synthesis of both (E)- and (Z)-ocellenyne, which, in combination with single crystal X-ray diffraction studies, allows their absolute configuration to be established and defines the configuration of the syn-12,13-dibromide as being (S, S) in keeping with their proposed biogenesis from the (6S, 7S)-laurediols.
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Affiliation(s)
- Harry
B. Hicks
- Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K.
| | - Daniel S. Brown
- Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K.
| | - Hau Sun Sam Chan
- Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K.
| | - Bruno A. Sousa
- Vertex
Pharmaceuticals, 86-88
Jubilee Avenue, Milton Park, Abingdon, OX14 4RW, U.K.
| | - Kirsten E. Christensen
- Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K.
| | - Jonathan W. Burton
- Chemistry
Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K.,
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3
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Shin I, Jang H, Kwak SY, Park Y, Lee D, Kim H, Kim D. Highly Stereodivergent Construction of a C 2-Symmetric cis, cis- and trans, trans-2,6-Dioxabicyclo[3.3.0]octane Framework by Double Intramolecular Amide Enolate Alkylation: Total Synthesis of (+)-Laurenidificin and (+)-Aplysiallene. Org Lett 2022; 24:8780-8785. [PMID: 36449560 DOI: 10.1021/acs.orglett.2c03494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
The highly stereoselective construction of C2-symmetric cis,cis- and trans,trans-2,6-dioxabicyclo[3.3.0]octane (fused bis-tetrahydrofuran) skeletons 4a and 4b has been accomplished via a novel stereodivergent double intramolecular amide enolate alkylation of common cyclization substrate 5 through the judicious choice of "chelate" versus crown ether-promoted "nonchelate" control. Application of this methodology has provided access to substrate-controlled concise total syntheses of (+)-laurenidificin (3) and (+)-aplysiallene (ent-2), which possess cis/cis- and trans/trans-fused bis-tetrahydrofuran cores, respectively.
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Affiliation(s)
- Iljin Shin
- College of Pharmacy and Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon 16499, Korea
| | - Hongjun Jang
- College of Pharmacy and Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon 16499, Korea
| | - Soo Yeon Kwak
- College of Pharmacy and Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon 16499, Korea
| | - Youngjik Park
- College of Pharmacy and Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon 16499, Korea
| | - Dongjoo Lee
- College of Pharmacy and Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon 16499, Korea
| | - Hyoungsu Kim
- College of Pharmacy and Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon 16499, Korea
| | - Deukjoon Kim
- The Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Korea
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4
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The Tetrahydrofuran Motif in Marine Lipids and Terpenes. Mar Drugs 2022; 20:md20100642. [PMID: 36286465 PMCID: PMC9605582 DOI: 10.3390/md20100642] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022] Open
Abstract
Heterocycles are particularly common moieties within marine natural products. Specifically, tetrahydrofuranyl rings are present in a variety of compounds which present complex structures and interesting biological activities. Focusing on terpenoids, a high number of tetrahydrofuran-containing metabolites have been isolated during the last decades. They show promising biological activities, making them potential leads for novel antibiotics, antikinetoplastid drugs, amoebicidal substances, or anticancer drugs. Thus, they have attracted the attention of the synthetics community and numerous approaches to their total syntheses have appeared. Here, we offer the reader an overview of marine-derived terpenoids and related compounds, their isolation, structure determination, and a special focus on their total syntheses and biological profiles.
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5
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Omar CA, Fernando SP. Nucleophilic substitution at the anomeric position of furanose carbohydrates. The case of the C-allylations. Carbohydr Res 2021; 510:108441. [PMID: 34700220 DOI: 10.1016/j.carres.2021.108441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/31/2021] [Accepted: 09/07/2021] [Indexed: 11/28/2022]
Abstract
Taking advantage of the locked conformation of cyclic furanose form, carbohydrate derivatives have been transformed into relevant tetrahydrofuran moieties through a chemical operation commonly known as C-glycosylation reaction. Consequently, a large number of total synthesis of naturally occurring products containing this heterocycle have been accomplished by applying this reaction. In this regard, the C-allylation reaction of furanose carbohydrates provides flexible routes for stereoselective anomeric functionalization by incorporating an allyl group, which is eventually re-functionalized into advanced natural product intermediates. Therefore, this mini review deals with the description of the origin of the stereoselectivity and synthetic applications of this type of glycosylation reaction, which can be also called as: "Nucleophilic Substitution at the Anomeric Position", conducted by various research groups including our own group.
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Affiliation(s)
- Cortezano-Arellano Omar
- Instituto de Ciencias Básicas, Universidad Veracruzana, Luis Castelazo Ayala, Col. Industrial Ánimas, 91190, Xalapa, Ver., Mexico
| | - Sartillo-Piscil Fernando
- Centro de Investigación de la Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla (BUAP), 14 Sur Esq. San Claudio, Col. San Manuel, 72570, Puebla, Mexico.
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6
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Mullapudi V, Ahmad I, Senapati S, Ramana CV. Total Synthesis of (+)-Petromyroxol, (-)- iso-Petromyroxol, and Possible Diastereomers. ACS OMEGA 2020; 5:25334-25348. [PMID: 33043213 PMCID: PMC7542842 DOI: 10.1021/acsomega.0c03674] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 09/10/2020] [Indexed: 06/11/2023]
Abstract
The total synthesis of (+)-petromyroxol (1) and its seven diastereomers including the (-)-iso-petromyroxol (2) is described. The employed strategy involves the use of easily available C5-epimeric epoxides 5 and 5' and nonselective anomeric C1-allylation, proceeding with or without inversion at C2, thereby giving the possibility of synthesizing all possible diastereomers. Extensive two-dimensional (2D) NMR analyses of all eight diastereomers have been carried out to assign the chemical shifts of the central carbons and the corresponding attached hydrogens and to learn how the C/H-chemical shifts of the tetrahydrofuran ring were influenced by the adjacent centers.
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Affiliation(s)
- Venkannababu Mullapudi
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
- Academy
of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110002, India
| | - Iram Ahmad
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
| | - Sibadatta Senapati
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
- Academy
of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110002, India
| | - Chepuri V. Ramana
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
- Academy
of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110002, India
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7
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Fernandes RA, Pathare RS, Gorve DA. Advances in Total Synthesis of Some 2,3,5-Trisubstituted Tetrahydrofuran Natural Products. Chem Asian J 2020; 15:2815-2837. [PMID: 32702201 DOI: 10.1002/asia.202000753] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/21/2020] [Indexed: 11/06/2022]
Abstract
2,3,5-Trisubstituted tetrahydrofuran moiety is ubiquitous in natural products. These have served as appealing candidates for total synthesis due to their varied bio- and pharmaceutical activities. This tutorial review delineates the ingenious efforts by many researchers in the total synthesis of selected natural products based on a common 2,3,5-trisubstituted tetrahydrofuran core structure. Many of the syntheses display nuanced interplay between new methods and the ingenuity of planned strategies achieved through catalysis or cascade chemistry. In some cases, the chiron approach has come quite handy, wherein the structural features and the stereochemistry in select molecules could map well with naturally available starting materials. This compilation also aims to enhance the diversity space based on these natural products and further interest in sustainable total synthesis.
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Affiliation(s)
- Rodney A Fernandes
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, Maharashtra, India
| | - Ramdas S Pathare
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, Maharashtra, India
| | - Dnyaneshwar A Gorve
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, Maharashtra, India
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8
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Shiozaki Y, Sakurai S, Sakamoto R, Matsumoto A, Maruoka K. Iron-Catalyzed Radical Cleavage/C-C Bond Formation of Acetal-Derived Alkylsilyl Peroxides. Chem Asian J 2020; 15:573-576. [PMID: 32017369 DOI: 10.1002/asia.201901695] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 01/15/2020] [Indexed: 12/12/2022]
Abstract
A novel radical-based approach for the iron-catalyzed selective cleavage of acetal-derived alkylsilyl peroxides, followed by the formation of a carbon-carbon bond is reported. The reaction proceeds under mild reaction conditions and exhibits a broad substrate scope with respect to the acetal moiety and the carbon electrophile. Mechanistic studies suggest that the present reaction proceeds through a free-radical process involving carbon radicals generated by the homolytic cleavage of a carbon-carbon bond within the acetal moiety. A synthetic application of this method to sugar-derived alkylsilyl peroxides is also described.
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Affiliation(s)
- Yoko Shiozaki
- Department of Chemistry Graduate School of Science, Kyoto University Sakyo, Kyoto, 606-8502, Japan
| | - Shunya Sakurai
- Department of Chemistry Graduate School of Science, Kyoto University Sakyo, Kyoto, 606-8502, Japan
| | - Ryu Sakamoto
- Department of Chemistry Graduate School of Science, Kyoto University Sakyo, Kyoto, 606-8502, Japan
| | - Akira Matsumoto
- Graduate School of Pharmaceutical Sciences, Kyoto University Sakyo, Kyoto, 606-8501, Japan
| | - Keiji Maruoka
- Department of Chemistry Graduate School of Science, Kyoto University Sakyo, Kyoto, 606-8502, Japan.,Graduate School of Pharmaceutical Sciences, Kyoto University Sakyo, Kyoto, 606-8501, Japan.,School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
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9
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Affiliation(s)
- Sibadatta Senapati
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
| | - Shyamsundar Das
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
| | - Chepuri V. Ramana
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
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10
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Corrado ML, Knaus T, Mutti FG. A Chimeric Styrene Monooxygenase with Increased Efficiency in Asymmetric Biocatalytic Epoxidation. Chembiochem 2018; 19:679-686. [PMID: 29378090 PMCID: PMC5900736 DOI: 10.1002/cbic.201700653] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Indexed: 11/23/2022]
Abstract
The styrene monooxygenase (SMO) system from Pseudomonas sp. consists of two enzymes (StyA and StyB). StyB catalyses the reduction of FAD at the expense of NADH. After the transfer of FADH2 from StyB to StyA, reaction with O2 generates FAD-OOH, which is the epoxidising agent. The wastage of redox equivalents due to partial diffusive transfer of FADH2 , the insolubility of recombinant StyB and the impossibility of expressing StyA and StyB in a 1:1 molar ratio reduce the catalytic efficiency of the natural system. Herein we present a chimeric SMO (Fus-SMO) that was obtained by genetic fusion of StyA and StyB through a flexible linker. Thanks to a combination of: 1) balanced and improved expression levels of reductase and epoxidase units, and 2) intrinsically higher specific epoxidation activity of Fus-SMO in some cases, Escherichia coli cells expressing Fus-SMO possess about 50 % higher activity for the epoxidation of styrene derivatives than E. coli cells coexpressing StyA and StyB as discrete enzymes. The epoxidation activity of purified Fus-SMO was up to three times higher than that of the two-component StyA/StyB (1:1, molar ratio) system and up to 110 times higher than that of the natural fused SMO. Determination of coupling efficiency and study of the influence of O2 pressure were also performed. Finally, Fus-SMO and formate dehydrogenase were coexpressed in E. coli and applied as a self-sufficient biocatalytic system for epoxidation on greater than 500 mg scale.
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Affiliation(s)
- Maria L. Corrado
- Van't Hoff Institute for Molecular SciencesHIMS-BiocatUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Tanja Knaus
- Van't Hoff Institute for Molecular SciencesHIMS-BiocatUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Francesco G. Mutti
- Van't Hoff Institute for Molecular SciencesHIMS-BiocatUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
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11
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Kobayashi S, Yokoi T, Inoue T, Hori Y, Saka T, Shimomura T, Masuyama A. Stereocontrolled Synthesis of a Possible Stereoisomer of Laurenidificin and a Formal Total Synthesis of (+)-Aplysiallene Featuring a Stereospecific Ring Contraction. J Org Chem 2016; 81:1484-98. [DOI: 10.1021/acs.joc.5b02595] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shoji Kobayashi
- Department of Applied Chemistry,
Faculty of Engineering, Osaka Institute of Technology, 5-16-1
Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| | - Taiki Yokoi
- Department of Applied Chemistry,
Faculty of Engineering, Osaka Institute of Technology, 5-16-1
Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| | - Tomoharu Inoue
- Department of Applied Chemistry,
Faculty of Engineering, Osaka Institute of Technology, 5-16-1
Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| | - Yutaka Hori
- Department of Applied Chemistry,
Faculty of Engineering, Osaka Institute of Technology, 5-16-1
Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| | - Tomoaki Saka
- Department of Applied Chemistry,
Faculty of Engineering, Osaka Institute of Technology, 5-16-1
Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| | - Taiki Shimomura
- Department of Applied Chemistry,
Faculty of Engineering, Osaka Institute of Technology, 5-16-1
Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| | - Araki Masuyama
- Department of Applied Chemistry,
Faculty of Engineering, Osaka Institute of Technology, 5-16-1
Ohmiya, Asahi-ku, Osaka 535-8585, Japan
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12
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Mullapudi V, Ramana CV. The Total Synthesis and Structural Assignment of Hexaketide Xylarinol B and its C1′-Epimer. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201500511] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Venkannababu Mullapudi
- Division of Organic Chemistry; CSIR - National Chemical Laboratory; Dr. Homi Bhabha Road Pune - 411 008 India
| | - Chepuri V. Ramana
- Division of Organic Chemistry; CSIR - National Chemical Laboratory; Dr. Homi Bhabha Road Pune - 411 008 India
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