1
|
Xiao Y, Wu F, Tang L, Zhang X, Wei M, Wang G, Feng JJ. Divergent Synthesis of Sulfur-Containing Bridged Cyclobutanes by Lewis Acid Catalyzed Formal Cycloadditions of Pyridinium 1,4-Zwitterionic Thiolates and Bicyclobutanes. Angew Chem Int Ed Engl 2024:e202408578. [PMID: 38818620 DOI: 10.1002/anie.202408578] [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: 05/06/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/01/2024]
Abstract
Bridged cyclobutanes and sulfur heterocycles are currently under intense investigation as building blocks for pharmaceutical drug design. Two formal cycloaddition modes involving bicyclobutanes (BCBs) and pyridinium 1,4-zwitterionic thiolate derivatives were described to rapidly expand the chemical space of sulfur-containing bridged cyclobutanes. By using Ni(ClO4)2 as the catalyst, an uncommon higher-order (5+3) cycloaddition of BCBs with quinolinium 1,4-zwitterionic thiolate was achieved with broad substrate scope under mild reaction conditions. Furthermore, the first Lewis acid-catalyzed asymmetric polar (5+3) cycloaddition of BCB with pyridazinium 1,4-zwitterionic thiolate was accomplished. In contrast, pyridinium 1,4-zwitterionic thiolates undergo an Sc(OTf)3-catalyzed formal (3+3) reaction with BCBs to generate thia-norpinene products, which represent the initial instance of synthesizing 2-thiabicyclo[3.1.1]heptanes (thia-BCHeps) from BCBs. Moreover, we have successfully used this (3+3) protocol to rapidly prepare thia-BCHeps-substituted analogues of the bioactive molecule Pitofenone. Density functional theory (DFT) computations imply that kinetic factors govern the (5+3) cycloaddition reaction between BCB and quinolinium 1,4-zwitterionic thiolate, whereas the (3+3) reaction involving pyridinium 1,4-zwitterionic thiolates is under thermodynamic control.
Collapse
Affiliation(s)
- Yuanjiu Xiao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Feng Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Lei Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Xu Zhang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, P.R. China
| | - Mengran Wei
- Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Guoqiang Wang
- Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Jian-Jun Feng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| |
Collapse
|
2
|
Liang Y, Nematswerani R, Daniliuc CG, Glorius F. Silver-Enabled Cycloaddition of Bicyclobutanes with Isocyanides for the Synthesis of Polysubstituted 3-Azabicyclo[3.1.1]heptanes. Angew Chem Int Ed Engl 2024; 63:e202402730. [PMID: 38441241 DOI: 10.1002/anie.202402730] [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: 02/06/2024] [Indexed: 04/17/2024]
Abstract
Synthesis of bicyclic scaffolds has emerged as an important research topic in modern drug development because they can serve as saturated bioisosters to enhance the physicochemical properties and metabolic profiles of drug candidates. Here we report a remarkably simple silver-enabled strategy to access polysubstituted 3-azabicyclo[3.1.1]heptanes in a single operation from readily accessible bicyclobutanes (BCBs) and isocyanides. The process is proposed to involve a formal (3+3)/(3+2)/retro-(3+2) cycloaddition sequence. This novel protocol allows for rapid generation of molecular complexity from simple starting materials, and the products can be easily derivatized, further enriching the BCB cycloaddition chemistry and the growing set of valuable sp3-rich bicyclic building blocks.
Collapse
Affiliation(s)
- Yujie Liang
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Ronewa Nematswerani
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| |
Collapse
|
3
|
Salgueiro DC, Chi BK, Guzei IA, García‐Reynaga P, Weix DJ. Control of Redox‐Active Ester Reactivity Enables a General Cross‐Electrophile Approach to Access Arylated Strained Rings**. Angew Chem Int Ed Engl 2022; 61:e202205673. [PMID: 35688769 PMCID: PMC9378488 DOI: 10.1002/anie.202205673] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Indexed: 11/20/2022]
Abstract
Strained rings are increasingly important for the design of pharmaceutical candidates, but cross‐coupling of strained rings remains challenging. An attractive, but underdeveloped, approach to diverse functionalized carbocyclic and heterocyclic frameworks containing all‐carbon quaternary centers is the coupling of abundant strained‐ring carboxylic acids with abundant aryl halides. Herein we disclose the development of a nickel‐catalyzed cross‐electrophile approach that couples a variety of strained ring N‐hydroxyphthalimide (NHP) esters, derived from the carboxylic acid in one step, with various aryl and heteroaryl halides under reductive conditions. The chemistry is enabled by the discovery of methods to control NHP ester reactivity, by tuning the solvent or using modified NHP esters, and the discovery that t‐BuBpyCamCN, an L2X ligand, avoids problematic side reactions. This method can be run in flow and in 96‐well plates.
Collapse
Affiliation(s)
- Daniel C. Salgueiro
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | - Benjamin K. Chi
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | - Ilia A. Guzei
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| | | | - Daniel J. Weix
- Department of Chemistry University of Wisconsin-Madison Madison WI 53706 USA
| |
Collapse
|
4
|
Bychek R, Mykhailiuk PK. A Practical and Scalable Approach to Fluoro-Substituted Bicyclo[1.1.1]pentanes. Angew Chem Int Ed Engl 2022; 61:e202205103. [PMID: 35638404 PMCID: PMC9401599 DOI: 10.1002/anie.202205103] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Indexed: 12/27/2022]
Abstract
After more than 20 years of trials, a practical scalable approach to fluoro‐substituted bicyclo[1.1.1]pentanes (F‐BCPs) has been developed. The physicochemical properties of the F‐BCPs have been studied, and the core was incorporated into the structure of the anti‐inflammatory drug Flurbiprofen in place of the fluorophenyl ring.
Collapse
Affiliation(s)
- Roman Bychek
- Enamine Ltd., Chervonotkatska 60, 02094, Kyiv, Ukraine
| | | |
Collapse
|
5
|
Dhake K, Woelk KJ, Becica J, Un A, Jenny SE, Leitch DC. Beyond Bioisosteres: Divergent Synthesis of Azabicyclohexanes and Cyclobutenyl Amines from Bicyclobutanes. Angew Chem Int Ed Engl 2022; 61:e202204719. [PMID: 35442565 DOI: 10.1002/anie.202204719] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Indexed: 12/15/2022]
Abstract
The development of two divergent and complementary Lewis acid catalyzed additions of bicyclobutanes to imines is described. Microscale high-throughput experimentation was integral to the discovery and optimization of both reactions. N-arylimines undergo formal (3+2) cycloaddition with bicyclobutanes to yield azabicyclo[2.1.1]hexanes in a single step; in contrast, N-alkylimines undergo an addition/elimination sequence to generate cyclobutenyl methanamine products with high diastereoselectivity. These new products contain a variety of synthetic handles for further elaboration, including many functional groups relevant to pharmaceutical synthesis. The divergent reactivity observed is attributed to differences in basicity and nucleophilicity of the nitrogen atom in a common carbocation intermediate, leading to either nucleophilic attack (N-aryl) or E1 elimination (N-alkyl).
Collapse
Affiliation(s)
- Kushal Dhake
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd., Victoria, BC V8P 5C2, Canada
| | - Kyla J Woelk
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd., Victoria, BC V8P 5C2, Canada
| | - Joseph Becica
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd., Victoria, BC V8P 5C2, Canada
| | - Andy Un
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd., Victoria, BC V8P 5C2, Canada
| | - Sarah E Jenny
- Department of Chemistry, Temple University, 1901N. Broad St, Philadelphia, PA 19122, USA
| | - David C Leitch
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd., Victoria, BC V8P 5C2, Canada
| |
Collapse
|
6
|
Bychek R, Mykhailiuk PK. A Practical and Scalable Approach to Fluoro‐Substituted Bicyclo[1.1.1]pentanes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205103] [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)
- Roman Bychek
- Enamine Ltd. Chervonotkatska 60 02094 Kyiv Ukraine
| | | |
Collapse
|
7
|
Salgueiro DC, Chi BK, Guzei IA, García-Reynaga P, Weix DJ. Control of Redox‐Active Ester Reactivity Enables a General Cross‐Electrophile Approach to Access Arylated Strained Rings. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205673] [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)
| | - Benjamin K. Chi
- UW-Madison: University of Wisconsin Madison Chemistry UNITED STATES
| | - Ilia A. Guzei
- UW-Madison: University of Wisconsin Madison Chemistry UNITED STATES
| | | | - Daniel John Weix
- UW-Madison: University of Wisconsin Madison Chemistry 1101 University Avenue 53706 Madison UNITED STATES
| |
Collapse
|
8
|
Dhake K, Woelk KJ, Becica J, Un A, Jenny SE, Leitch DC. Beyond Bioisosteres: Divergent Synthesis of Azabicyclohexanes and Cyclobutenyl Amines from Bicyclobutanes**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kushal Dhake
- Department of Chemistry University of Victoria 3800 Finnerty Rd. Victoria BC V8P 5C2 Canada
| | - Kyla J. Woelk
- Department of Chemistry University of Victoria 3800 Finnerty Rd. Victoria BC V8P 5C2 Canada
| | - Joseph Becica
- Department of Chemistry University of Victoria 3800 Finnerty Rd. Victoria BC V8P 5C2 Canada
| | - Andy Un
- Department of Chemistry University of Victoria 3800 Finnerty Rd. Victoria BC V8P 5C2 Canada
| | - Sarah E. Jenny
- Department of Chemistry Temple University 1901N. Broad St Philadelphia PA 19122 USA
| | - David C. Leitch
- Department of Chemistry University of Victoria 3800 Finnerty Rd. Victoria BC V8P 5C2 Canada
| |
Collapse
|
9
|
Homon AA, Hryshchuk OV, Mykhailenko OV, Vashchenko BV, Melnykov KP, Michurin OM, Daniliuc CG, Gerus II, Kovtunenko VO, Kondratov IS, Grygorenko OO. 4‐(Di‐/Trifluoromethyl)‐2‐heterabicyclo[2.1.1]hexanes: Advanced Fluorinated Phenyl Isosteres and Proline analogues. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100414] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Anton A. Homon
- Enamine Ltd. (www.enamine.net) Chervonotkatska Street 78 Kyiv 02094 Ukraine
- V.P. Kukhar Institute of Bioorganic Chemistry & Petrochemistry NAS of Ukraine Murmanska Street 1 Kyiv 02660 Ukraine
| | - Oleksandr V. Hryshchuk
- Enamine Ltd. (www.enamine.net) Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | - Olha V. Mykhailenko
- Enamine Ltd. (www.enamine.net) Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | - Bohdan V. Vashchenko
- Enamine Ltd. (www.enamine.net) Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | - Kostiantyn P. Melnykov
- Enamine Ltd. (www.enamine.net) Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | - Oleg M. Michurin
- Enamine Ltd. (www.enamine.net) Chervonotkatska Street 78 Kyiv 02094 Ukraine
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstr. 40 48149 Münster Germany
| | - Igor I. Gerus
- V.P. Kukhar Institute of Bioorganic Chemistry & Petrochemistry NAS of Ukraine Murmanska Street 1 Kyiv 02660 Ukraine
| | | | - Ivan S. Kondratov
- Enamine Ltd. (www.enamine.net) Chervonotkatska Street 78 Kyiv 02094 Ukraine
- V.P. Kukhar Institute of Bioorganic Chemistry & Petrochemistry NAS of Ukraine Murmanska Street 1 Kyiv 02660 Ukraine
| | - Oleksandr O. Grygorenko
- Enamine Ltd. (www.enamine.net) Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| |
Collapse
|
10
|
Grygorenko OO, Volochnyuk DM, Vashchenko BV. Emerging Building Blocks for Medicinal Chemistry: Recent Synthetic Advances. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100857] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Oleksandr O. Grygorenko
- Enamine Ltd. Chervonotkatska 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | - Dmitriy M. Volochnyuk
- Enamine Ltd. Chervonotkatska 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
- Institute of Organic Chemistry National Academy of Sciences of Ukraine Murmanska Street 5 Kyiv 02094 Ukraine
| | - Bohdan V. Vashchenko
- Enamine Ltd. Chervonotkatska 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| |
Collapse
|
11
|
Dallaston MA, Houston SD, Williams CM. Cubane, Bicyclo[1.1.1]pentane and Bicyclo[2.2.2]octane: Impact and Thermal Sensitiveness of Carboxyl-, Hydroxymethyl- and Iodo-substituents. Chemistry 2020; 26:11966-11970. [PMID: 32820575 DOI: 10.1002/chem.202001658] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/22/2020] [Indexed: 12/21/2022]
Abstract
With the burgeoning interest in cage motifs for bioactive molecule discovery, and the recent disclosure of 1,4-cubane-dicarboxylic acid impact sensitivity, more research into the safety profiles of cage scaffolds is required. Therefore, the impact sensitivity and thermal decomposition behavior of judiciously selected starting materials and synthetic intermediates of cubane, bicyclo[1.1.1]pentane (BCP), and bicyclo[2.2.2]octane (BCO) were evaluated via hammer test and sealed cell differential scanning calorimetry, respectively. Iodo-substituted systems were found to be more impact sensitive, whereas hydroxymethyl substitution led to more rapid thermodecomposition. Cubane was more likely to be impact sensitive with these substituents, followed by BCP, whereas all BCOs were unresponsive. The majority of derivatives were placed substantially above Yoshida thresholds-a computational indicator of sensitivity.
Collapse
Affiliation(s)
- Madeleine A Dallaston
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Australia
| | - Sevan D Houston
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Australia
| | - Craig M Williams
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Australia
| |
Collapse
|