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Szczepanik PM, Mikhaylov AA, Hylse O, Kučera R, Daďová P, Nečas M, Kubala L, Paruch K, Švenda J. Convergent Assembly of the Tricyclic Labdane Core Enables Synthesis of Diverse Forskolin-like Molecules. Angew Chem Int Ed Engl 2023; 62:e202213183. [PMID: 36321750 DOI: 10.1002/anie.202213183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Indexed: 11/06/2022]
Abstract
We report a new synthetic strategy for the flexible preparation of forskolin-like molecules. The approach is different from the previously published works and employs a convergent assembly of the tricyclic labdane-type core from pre-functionalized cyclic building blocks. Stereoselective Michael addition enabled the fragment coupling with excellent control over three newly created contiguous stereocenters, all-carbon quaternary centers included. Silyl enol ether-promoted ring-opening metathesis paired with ring closure were the other key steps enabling concise assembly of the tricyclic core. Late-stage functionalization sequences transformed the tricyclic intermediates into a set of different forskolin-like molecules. The modular nature of the synthetic scheme described herein has the potential to become a general platform for the preparation of analogs of forskolin and other complex tricyclic labdanes.
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Affiliation(s)
- Paweł M Szczepanik
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Pekařská 53, Brno, 656 91, Czech Republic
| | - Andrey A Mikhaylov
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Pekařská 53, Brno, 656 91, Czech Republic
| | - Ondřej Hylse
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Pekařská 53, Brno, 656 91, Czech Republic
| | - Roman Kučera
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Petra Daďová
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Královopolská 135, Brno, 612 65, Czech Republic.,Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Marek Nečas
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Lukáš Kubala
- International Clinical Research Center, St. Anne's University Hospital, Pekařská 53, Brno, 656 91, Czech Republic.,Institute of Biophysics, Academy of Sciences of the Czech Republic, Královopolská 135, Brno, 612 65, Czech Republic.,Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Kamil Paruch
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Pekařská 53, Brno, 656 91, Czech Republic
| | - Jakub Švenda
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Pekařská 53, Brno, 656 91, Czech Republic
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2
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Yu W, Song J, Yu SY, Kim J. Cyclocarbonylation of Allenyl Glyoxylate Strategy to Build the Tricyclic Core of Cyclocalopin A. Org Lett 2022; 24:2242-2247. [PMID: 35297249 DOI: 10.1021/acs.orglett.2c00625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An approach for the construction of the tricyclic framework of naturally occurring cyclocalopin A is described. The establishment of the crucial intermediate α-methylene bis-γ,δ-lactone involves a [2 + 2 + 1]-cyclocarbonylation of newly introduced allenyl glyoxylate via direct methods using Mo(CO)6 or sequential reaction pathways. The sequential reaction route involved a stannylative cyclization by Pd(0) catalyst, bromination of an vinyl stannane moiety, and final cyclocarbonylation by palladium catalysis to provide the bis-γ,δ-lactone. The feasibility of forming the spiro-system by an exo-selective [4 + 2]-cycloaddition was accomplished.
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Affiliation(s)
- Weonju Yu
- Department of Chemistry, Chonnam National University, Gwangju 61186, Korea
| | - Jieun Song
- Department of Chemistry, Chonnam National University, Gwangju 61186, Korea
| | - Suh Young Yu
- Department of Chemistry, Chonnam National University, Gwangju 61186, Korea
| | - Jimin Kim
- Department of Chemistry, Chonnam National University, Gwangju 61186, Korea
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3
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Kotha S, Fatma A. Construction of [5/7/5] Fused Tricyclic Sulfones via Ring‐Rearrangement Metathesis. ChemistrySelect 2020. [DOI: 10.1002/slct.201904381] [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]
Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry Indian Institute of Technology-Bombay Powai, Mumbai 400076 India
| | - Ambareen Fatma
- Department of Chemistry Indian Institute of Technology-Bombay Powai, Mumbai 400076 India
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5
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Datta R, Ghosh S. Domino ring-opening-ring-closing enyne metathesis vs enyne metathesis of norbornene derivatives with alkynyl side chains. Construction of condensed polycarbocycles. Beilstein J Org Chem 2018; 14:2708-2714. [PMID: 30410632 PMCID: PMC6204787 DOI: 10.3762/bjoc.14.248] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 10/10/2018] [Indexed: 12/12/2022] Open
Abstract
The metathesis of norbornene derivatives with alkynyl side-chain with Grubbs’ ruthenium alkylidine as catalyst has been investigated with the objective of constructing condensed polycyclic structures. This investigation demonstrated that the generally observed domino reaction course involving a ring-opening metathesis of the norbornene unit and a ring-closing enyne metathesis is influenced to a great extent by the nature of the functional group and the substrate structure and may follow a different reaction course than what is usually observed. In cases where ROM–RCEYM occurred, the resulting 1,3-diene reacts in situ with the dienophile to provide condensed tetracyclic systems.
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Affiliation(s)
- Ritabrata Datta
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Subrata Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
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Acharyya RK, Rej RK, Nanda S. Exploration of Ring Rearrangement Metathesis Reaction: A General and Flexible Approach for the Rapid Construction [5,n]-Fused Bicyclic Systems en Route to Linear Triquinanes. J Org Chem 2018; 83:2087-2103. [PMID: 29308638 DOI: 10.1021/acs.joc.7b03021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Structurally diverse [5,n] bicyclic systems with cis ring junction stereochemistry were accessed readily through RRM (ring rearrangement metathesis) reaction of properly functionalized [2.2.1]norbornene skeletons. Several bicyclic enones, ketones, alcohols, and ethers acted as the substrates and yielded the respective linearly fused [5,n] bicyclic systems stereoselectively after the RRM reaction. Such [5,5]bicyclic enone scaffolds were then synthetically manipulated to core structural analogue of naturally occurring liner triquinane hirsutene having cis-syn-cis stereochemistry.
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Affiliation(s)
- Ranjan Kumar Acharyya
- Department of Chemistry, Indian Institute Technology Kharagpur , Kharagpur 721302, India
| | - Rohan Kalyan Rej
- Department of Chemistry, Indian Institute Technology Kharagpur , Kharagpur 721302, India
| | - Samik Nanda
- Department of Chemistry, Indian Institute Technology Kharagpur , Kharagpur 721302, India
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Kotha S, Pulletikurti S. Synthesis of propellanes containing a bicyclo[2.2.2]octene unitviathe Diels–Alder reaction and ring-closing metathesis as key steps. RSC Adv 2018; 8:14906-14915. [PMID: 35541332 PMCID: PMC9079985 DOI: 10.1039/c8ra02687d] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 04/03/2018] [Indexed: 12/13/2022] Open
Abstract
A simple and convenient method to synthesize propellane derivatives containing a bicyclo[2.2.2]octene unit which are structurally similar to 11β-HSD1 inhibitors by sequential usage of the Diels–Alder reaction, C-allylation and ring-closing metathesis (RCM) is reported.
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Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry
- Indian Institute of Technology-Bombay
- Mumbai-400 076
- India
| | - Sunil Pulletikurti
- Department of Chemistry
- Indian Institute of Technology-Bombay
- Mumbai-400 076
- India
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8
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Affiliation(s)
- Ritabrata Datta
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700
032, India
| | - Subrata Ghosh
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700
032, India
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Kotha S, Gunta R. Bridgehead vicinal diallylation of norbornene derivatives and extension to propellane derivatives via ring-closing metathesis. Beilstein J Org Chem 2016; 12:1877-1883. [PMID: 27829894 PMCID: PMC5082723 DOI: 10.3762/bjoc.12.177] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 08/03/2016] [Indexed: 01/25/2023] Open
Abstract
Here, we report a simple synthetic strategy to the bridgehead vicinal diallylation of norbornene derivatives. These substrates are useful to generate propellanes via ring-closing metathesis. Single-crystal X-ray diffraction analysis of four compounds led to the realization of configurational correction of earlier reported molecules.
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Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry, Indian Institute of Technology-Bombay, Powai, Mumbai, India
| | - Rama Gunta
- Department of Chemistry, Indian Institute of Technology-Bombay, Powai, Mumbai, India
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10
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Datta R, Dixon RJ, Ghosh S. A convenient access to the tricyclic core structure of hippolachnin A. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.11.045] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kotha S, Meshram M, Khedkar P, Banerjee S, Deodhar D. Recent applications of ring-rearrangement metathesis in organic synthesis. Beilstein J Org Chem 2015; 11:1833-64. [PMID: 26664603 PMCID: PMC4660990 DOI: 10.3762/bjoc.11.199] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Accepted: 09/17/2015] [Indexed: 11/23/2022] Open
Abstract
Ring-rearrangement metathesis (RRM) involves multiple metathesis processes such as ring-opening metathesis (ROM)/ring-closing metathesis (RCM) in a one-pot operation to generate complex targets. RRM delivers complex frameworks that are difficult to assemble by conventional methods. The noteworthy point about this type of protocol is multi-bond formation and it is an atom economic process. In this review, we have covered literature that appeared during the last seven years (2008–2014).
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Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400 076, India.
| | - Milind Meshram
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400 076, India.
| | - Priti Khedkar
- Department of Chemistry, Guru Nanak Khalsa College of Arts, Science & Commerce, Matunga, Mumbai-400 019, India
| | - Shaibal Banerjee
- Department of Applied Chemistry, Defence Institute of Advanced Technology (DU), Girinagar, Pune-411025, Pune, India
| | - Deepak Deodhar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400 076, India.
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Kotha S, Ravikumar O. Design and synthesis of fused polycycles via Diels-Alder reaction and ring-rearrangement metathesis as key steps. Beilstein J Org Chem 2015; 11:1259-64. [PMID: 26425184 PMCID: PMC4578369 DOI: 10.3762/bjoc.11.140] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 07/08/2015] [Indexed: 11/25/2022] Open
Abstract
Atom efficient processes such as the Diels–Alder reaction (DA) and the ring-rearrangement metathesis (RRM) have been used to design new polycycles. In this regard, ruthenium alkylidene catalysts are effective in realizing the RRM of bis-norbornene derivatives prepared by DA reaction and Grignard addition. Here, fused polycycles are assembled which are difficult to produce by conventional synthetic routes.
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Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry, Indian Institute of Technology-Bombay, Powai, Mumbai-400 076, India
| | - Ongolu Ravikumar
- Department of Chemistry, Indian Institute of Technology-Bombay, Powai, Mumbai-400 076, India
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Singh V, Das B, Jarhad DB, Mobin SM. Molecular diversity from aromatics. Cycloaddition of cyclohexa-2,4-dienones, ring-closing metathesis and sigmatropic shifts: a general and stereoselective route to novel spirocarbocyclics. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.12.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Yao L, Wang CJ. AsymmetricN-Allylic Alkylation of Hydrazones with Morita-Baylis-Hillman Carbonates. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400790] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Behera TK, Singh V. Molecular complexity from aromatics. Studies on synthesis of polycyclic system related to crotogoudin. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.08.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2012. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.02.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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17
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Datta R, Bose S, Viththlbhai PB, Ghosh S. An expeditious approach to highly functionalized angularly fused 5–5–n ring systems through ring opening–ring closing metathesis of norbornene derivatives. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.04.091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Lam JK, Pham HV, Houk KN, Vanderwal CD. Computation and experiment reveal that the ring-rearrangement metathesis of Himbert cycloadducts can be subject to kinetic or thermodynamic control. J Am Chem Soc 2013; 135:17585-94. [PMID: 24111571 DOI: 10.1021/ja409618p] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Unusual observations in the ring-rearrangement metathesis of Himbert arene/allene cycloadducts to form fused polycylic lactams led to a more in-depth experimental study that yielded conflicting results. Differences in reactivity within related systems and unexpected changes in diastereoselectivity among other similar substrates were not readily explained on the basis of the experimental results. Computational investigations demonstrated substrate-dependent changes in reaction pathways (ring-opening metathesis/ring-closing metathesis [ROM/RCM] cascade vs ring-closing metathesis/ring-opening metathesis [RCM/ROM] cascade). Furthermore, some reactions were judged to be under thermodynamic control and others under kinetic control. The greater understanding of the most likely reaction pathways and their energetics provides a reasonable explanation for the previously irreconcilable results.
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Affiliation(s)
- Jonathan K Lam
- 1102 Natural Sciences II, Department of Chemistry, University of California , Irvine, California 92697-2025, United States
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Rojas V, Carreras J, Avenoza A, Busto JH, Peregrina JM. Ring-Rearrangement Metathesis of 7-Azanorbornenes as an Entry to 1-Azabicyclo[n.3.0]alkenones. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300126] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Companyó X, Mazzanti A, Moyano A, Janecka A, Rios R. First one-pot organocatalytic synthesis of α-methylene-γ-lactones. Chem Commun (Camb) 2013; 49:1184-6. [DOI: 10.1039/c2cc38659c] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Dhara K, Midya GC, Dash J. A Diversity-Oriented Approach to Spirocyclic and Fused Hydantoins via Olefin Metathesis. J Org Chem 2012; 77:8071-82. [DOI: 10.1021/jo301234r] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Kalyan Dhara
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West
Bengal 741252, India
| | - Ganesh Chandra Midya
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West
Bengal 741252, India
- Department
of Organic Chemistry, Indian Association for the Cultivation of Science,
Jadavpur, Kolkata-700032, India
| | - Jyotirmayee Dash
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West
Bengal 741252, India
- Department
of Organic Chemistry, Indian Association for the Cultivation of Science,
Jadavpur, Kolkata-700032, India
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