1
|
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.
Collapse
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
| |
Collapse
|
2
|
Menche D. Design and Synthesis of Simplified Polyketide Analogs: New Modalities beyond the Rule of 5. ChemMedChem 2021; 16:2068-2074. [PMID: 33755304 PMCID: PMC8360190 DOI: 10.1002/cmdc.202100150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Indexed: 12/29/2022]
Abstract
Natural products provide important lead structures for development of pharmaceutical agents or present attractive tools for medicinal chemistry. However, structurally complex and thus less accessible metabolites defying conventional drug-like properties, as expressed by Pfizer's rule of five, have received less attention as medicinal leads. Traditionally, research focus has been on realizing total syntheses rather than developing more readily available analogs to resolve the critical supply issue. However, very recent studies with complex myxobacterial polyketides have demonstrated that considerable structural simplification may be realized with retention of biological potencies. The context, underlying rationale and importance of tailored synthetic strategies of three such case studies are presented, which may inspire further related activities and may eventually help exploiting the largely untapped biological potential of complex metabolites in general.
Collapse
Affiliation(s)
- Dirk Menche
- Kekulé-Institut für Organische Chemie und BiochemieUniversität BonnGerhard-Domagk-Strasse 153121BonnGermany
| |
Collapse
|
3
|
Rivière S, Vielmuth C, Ennenbach C, Abdelrahman A, Lemke C, Gütschow M, Müller CE, Menche D. Design, Synthesis and Biological Evaluation of Highly Potent Simplified Archazolids. ChemMedChem 2020; 15:1348-1363. [PMID: 32363789 PMCID: PMC7496434 DOI: 10.1002/cmdc.202000154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Indexed: 01/25/2023]
Abstract
The archazolids are potent antiproliferative compounds that have recently emerged as a novel class of promising anticancer agents. Their complex macrolide structures and scarce natural supply make the development of more readily available analogues highly important. Herein, we report the design, synthesis and biological evaluation of four simplified and partially saturated archazolid derivatives. We also reveal important structure-activity relationship data as well as insights into the pharmacophore of these complex polyketides.
Collapse
Affiliation(s)
- Solenne Rivière
- Kekulé-Institut für Organische Chemie und BiochemieUniversität BonnGerhard-Domagk-Strasse 153121BonnGermany
| | - Christin Vielmuth
- Pharmazeutische & Medizinische ChemiePharmazeutisches InstitutUniversität BonnAn der Immenburg 453121BonnGermany
| | - Christiane Ennenbach
- Pharmazeutische & Medizinische ChemiePharmazeutisches InstitutUniversität BonnAn der Immenburg 453121BonnGermany
| | - Aliaa Abdelrahman
- Pharmazeutische & Medizinische ChemiePharmazeutisches InstitutUniversität BonnAn der Immenburg 453121BonnGermany
| | - Carina Lemke
- Pharmazeutische & Medizinische ChemiePharmazeutisches InstitutUniversität BonnAn der Immenburg 453121BonnGermany
| | - Michael Gütschow
- Pharmazeutische & Medizinische ChemiePharmazeutisches InstitutUniversität BonnAn der Immenburg 453121BonnGermany
| | - Christa E. Müller
- Pharmazeutische & Medizinische ChemiePharmazeutisches InstitutUniversität BonnAn der Immenburg 453121BonnGermany
| | - Dirk Menche
- Kekulé-Institut für Organische Chemie und BiochemieUniversität BonnGerhard-Domagk-Strasse 153121BonnGermany
| |
Collapse
|
4
|
Scheeff S, Rivière S, Ruiz J, Abdelrahman A, Schulz-Fincke AC, Köse M, Tiburcy F, Wieczorek H, Gütschow M, Müller CE, Menche D. Synthesis of Novel Potent Archazolids: Pharmacology of an Emerging Class of Anticancer Drugs. J Med Chem 2020; 63:1684-1698. [DOI: 10.1021/acs.jmedchem.9b01887] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Stephan Scheeff
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
| | - Solenne Rivière
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
| | - Johal Ruiz
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
| | - Aliaa Abdelrahman
- Pharmazeutisches Institut, Universität Bonn, An der Immenburg 4, D-53121 Bonn, Germany
| | | | - Meryem Köse
- Pharmazeutisches Institut, Universität Bonn, An der Immenburg 4, D-53121 Bonn, Germany
| | - Felix Tiburcy
- Fachbereich Biologie/Chemie, Universität Osnabrück, D-49069 Osnabrück, Germany
| | - Helmut Wieczorek
- Fachbereich Biologie/Chemie, Universität Osnabrück, D-49069 Osnabrück, Germany
| | - Michael Gütschow
- Pharmazeutisches Institut, Universität Bonn, An der Immenburg 4, D-53121 Bonn, Germany
| | - Christa E. Müller
- Pharmazeutisches Institut, Universität Bonn, An der Immenburg 4, D-53121 Bonn, Germany
| | - Dirk Menche
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
| |
Collapse
|
5
|
Saptal VB, Wang R, Park S. Recent advances in transition metal-free catalytic hydroelementation (E = B, Si, Ge, and Sn) of alkynes. RSC Adv 2020; 10:43539-43565. [PMID: 35519696 PMCID: PMC9058465 DOI: 10.1039/d0ra07768b] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/15/2020] [Indexed: 12/21/2022] Open
Abstract
This review describes the recent advances in the transition metal-free hydroelementation of alkynes with various metalloid hydrides.
Collapse
Affiliation(s)
- Vitthal B. Saptal
- Department of Chemistry
- Guangdong Technion Israel Institute of Technology
- China
| | - Ruibin Wang
- Department of Chemistry
- Guangdong Technion Israel Institute of Technology
- China
| | - Sehoon Park
- Department of Chemistry
- Guangdong Technion Israel Institute of Technology
- China
- Technion-Israel Institute of Technology
- 32000 Haifa
| |
Collapse
|
6
|
|
7
|
Vincent CT, Long ET, Jones HC, Young JC, Spiegel PC, O'Neil GW. Suzuki coupling-based synthesis of VATPase inhibitor archazolid natural product derived fragments. RSC Adv 2019; 9:32210-32218. [PMID: 35530773 PMCID: PMC9072946 DOI: 10.1039/c9ra07050h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 10/29/2019] [Accepted: 10/02/2019] [Indexed: 11/21/2022] Open
Abstract
An archazolid natural product fragment that displays dose-dependent inhibition of the vacuolar-type ATPase (VATPase) has been synthesized by a high-yielding Suzuki coupling of two complex subunits. Similarly, a further simplified fragment was prepared and evaluated for VATPase inhibitory activity. This compound did inhibit the VATPase, as evidenced by growth inhibition of etiolated Arabidopsis seedlings, however at approximately 10× lower potency than the more complex fragment. Cyclooxygenase (COX) enzyme inhibition was not observed for either fragment. An archazolid natural product fragment that displays dose-dependent inhibition of the vacuolar-type ATPase (VATPase) has been synthesized by a high-yielding Suzuki coupling of two complex subunits.![]()
Collapse
Affiliation(s)
- Cooper T. Vincent
- Department of Chemistry
- Western Washington University
- Bellingham
- USA 98229
| | - Evan T. Long
- Department of Chemistry
- Western Washington University
- Bellingham
- USA 98229
| | - Holly C. Jones
- Department of Chemistry
- Western Washington University
- Bellingham
- USA 98229
| | - Jeffrey C. Young
- Department of Biology
- Western Washington University
- Bellingham
- USA 98229
| | - P. Clint Spiegel
- Department of Chemistry
- Western Washington University
- Bellingham
- USA 98229
| | - Gregory W. O'Neil
- Department of Chemistry
- Western Washington University
- Bellingham
- USA 98229
| |
Collapse
|
8
|
Affiliation(s)
- Stephan Scheeff
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, D-53121 Bonn, Germany
| | - Dirk Menche
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, D-53121 Bonn, Germany
| |
Collapse
|
9
|
Zhuo CX, Fürstner A. Catalysis-Based Total Syntheses of Pateamine A and DMDA-Pat A. J Am Chem Soc 2018; 140:10514-10523. [PMID: 30056701 DOI: 10.1021/jacs.8b05094] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The marine natural product pateamine A (1) and its somewhat simplified designer analogue DMDA-Pat A (2) (DMDA = desmethyl-desamino) are potently cytotoxic compounds; most notably, 2 had previously been found to exhibit a promising differential in vivo activity in xenograft melanoma models, even though the ubiquitous eukaryotic initiation factor 4A (eIF4A) constitutes its primary biological target. In addition, 1 had also been identified as a possible lead in the quest for medication against cachexia, an often lethal muscle wasting syndrome affecting many immunocompromised or cancer patients. The short supply of these macrodiolides, however, rendered a more detailed biological assessment difficult. Therefore, a new synthetic approach to 1 and 2 has been devised, which centers on an unorthodox strategy for the formation of the highly isomerization-prone but essential Z, E-configured dienoate substructure embedded into the macrocyclic core. This motif was encoded in the form of a 2-pyrone ring and unveiled only immediately before macrocyclization by an unconventional iron-catalyzed ring opening/cross-coupling reaction, in which the enol ester entity of the pyrone gains the role of a leaving group. Since the required precursor was readily available by gold catalysis, this strategy rendered the overall sequence short, robust, and scalable. A surprisingly easy protecting group management together with a much improved end game for the formation of the trienyl side chain via a modern Stille coupling protocol also helped to make the chosen route practical. Change of a single building block allowed the synthesis to be redirected from the natural lead compound 1 toward its almost equipotent analogue 2. Isolation and reactivity profiling of pyrone tricarbonyliron complexes provide mechanistic information as well as insights into the likely origins of the observed chemoselectivity.
Collapse
Affiliation(s)
- Chun-Xiang Zhuo
- Max-Planck-Institut für Kohlenforschung , D-45470 Mülheim/Ruhr , Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung , D-45470 Mülheim/Ruhr , Germany
| |
Collapse
|
10
|
Heravi MM, Mohammadkhani L. Recent applications of Stille reaction in total synthesis of natural products: An update. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.05.018] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
11
|
Scheeff S, Menche D. Total syntheses of the archazolids: an emerging class of novel anticancer drugs. Beilstein J Org Chem 2017; 13:1085-1098. [PMID: 28684988 PMCID: PMC5480361 DOI: 10.3762/bjoc.13.108] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 05/09/2017] [Indexed: 12/19/2022] Open
Abstract
V-ATPase has recently emerged as a promising novel anticancer target based on extensive in vitro and in vivo studies with the archazolids, complex polyketide macrolides which present the most potent V-ATPase inhibitors known to date, rendering these macrolides important lead structures for the development of novel anticancer agents. The limited natural supply of these metabolites from their myxobacterial source renders total synthesis of vital importance for the further preclinical development. This review describes in detail the various tactics and strategies employed so far in archazolid syntheses that culminated in three total syntheses and discusses the future synthetic challenges that have to be addressed.
Collapse
Affiliation(s)
- Stephan Scheeff
- 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
| |
Collapse
|