1
|
Umaña CA, Henry JL, Saltzman CT, Sackett DL, Jenkins LM, Taylor RE. Linear (-)-Zampanolide: Flexibility in Conformation-Activity Relationships. ChemMedChem 2023; 18:e202300292. [PMID: 37552215 PMCID: PMC10615712 DOI: 10.1002/cmdc.202300292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/20/2023] [Accepted: 08/01/2023] [Indexed: 08/09/2023]
Abstract
Through an understanding of the conformational preferences of the polyketide natural product (-)-zampanolide, and the structural motifs that control these preferences, we developed a linear zampanolide analogue that exhibits potent cytotoxicity against cancer cell lines. This discovery provides a set of three structural handles for further structure-activity relationship (SAR) studies of this potent microtubule-stabilizing agent. Moreover, it provides additional evidence of the complex relationship between ligand preorganization, conformational flexibility, and biological potency. In contrast to medicinal chemistry dogma, these results demonstrate that increased overall conformational flexibility is not necessarily detrimental to protein binding affinity and biological activity.
Collapse
Affiliation(s)
- Christian A Umaña
- Department of Chemistry and Biochemistry and the Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, IN 46556-5670, USA
| | - Jeffrey L Henry
- Department of Chemistry and Biochemistry and the Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, IN 46556-5670, USA
| | - Claire T Saltzman
- Department of Chemistry and Biochemistry and the Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, IN 46556-5670, USA
| | - Dan L Sackett
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Lisa M Jenkins
- Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA
| | - Richard E Taylor
- Department of Chemistry and Biochemistry and the Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, IN 46556-5670, USA
| |
Collapse
|
2
|
Masiuk US, Faletrov YV, Kananovich DG, Mineyeva IV. Stereodivergent Assembly of 2,6- cis- and - trans-Tetrahydropyrans via Base-Mediated Oxa-Michael Cyclization: The Key Role of the TMEDA Additive. J Org Chem 2023; 88:355-370. [PMID: 36495268 DOI: 10.1021/acs.joc.2c02382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The stereodivergent synthesis of cis- and trans-2,6-disubstituted tetrahydropyrans (THPs) via sodium hexamethyldisilazide-promoted oxa-Michael cyclization of (E)-ζ-hydroxy α,β-unsaturated esters is presented. The cyclization affords the kinetically favored trans-THPs with high stereoselectivity (dr up to 93:7) at a low temperature (-78 °C), while the room-temperature reaction does not produce the thermodynamically preferred cis-THPs as major products and occurs with poor stereocontrol. The addition of tetramethylethylenediamine (TMEDA) significantly improves the stereochemical outcome of the room-temperature cyclization and allows attaining high cis-selectivity (dr up to 99:1). The remarkable effect of TMEDA indicates that the sodium cation plays an important role in controlling the stereoselectivity of the thermodynamically driven process, that is, complexation of the cation with the cyclization products results in diminished selectivity. DFT calculations support this conclusion, indicating a greater difference in Gibbs energies of sodium-free cis- and trans-enolates compared to the respective sodium chelate complexes. The synthetic utility of the method has been demonstrated by the formal syntheses of (+)-Neopeltolide and (-)-Diospongin B and the total synthesis of (-)-Diospongin A.
Collapse
Affiliation(s)
- Uladzimir S Masiuk
- Department of Chemistry, Belarusian State University, Leningradskaya 14, 220006 Minsk, Belarus.,School of Science, Department of Chemistry and Biotechnology, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Yaroslav V Faletrov
- Department of Chemistry, Belarusian State University, Leningradskaya 14, 220006 Minsk, Belarus.,Research Institute for Physical Chemical Problems, Belarusian State University, Leningradskaya 14, 220006 Minsk, Belarus
| | - Dzmitry G Kananovich
- School of Science, Department of Chemistry and Biotechnology, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Iryna V Mineyeva
- Department of Chemistry, Belarusian State University, Leningradskaya 14, 220006 Minsk, Belarus
| |
Collapse
|
3
|
Feng Y, Yang X, Ji H, Deng Z, Lin S, Zheng J. The Streptomyces viridochromogenes product template domain represents an evolutionary intermediate between dehydratase and aldol cyclase of type I polyketide synthases. Commun Biol 2022; 5:508. [PMID: 35618872 PMCID: PMC9135731 DOI: 10.1038/s42003-022-03477-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 05/10/2022] [Indexed: 01/08/2023] Open
Abstract
The product template (PT) domains act as an aldol cyclase to control the regiospecific aldol cyclization of the extremely reactive poly-β-ketone intermediate assembled by an iterative type I polyketide synthases (PKSs). Up to now, only the structure of fungal PksA PT that mediates the first-ring cyclization via C4–C9 aldol cyclization is available. We describe here the structural and computational characterization of a bacteria PT domain that controls C2–C7 cyclization in orsellinic acid (OSA) synthesis. Mutating the catalytic H949 of the PT abolishes production of OSA and results in a tetraacetic acid lactone (TTL) generated by spontaneous O-C cyclization of the acyl carrier protein (ACP)-bound tetraketide intermediate. Crystal structure of the bacterial PT domain closely resembles dehydrase (DH) domains of modular type I PKSs in the overall fold, dimerization interface and His-Asp catalytic dyad organization, but is significantly different from PTs of fungal iterative type I PKSs. QM/MM calculation suggests that the catalytic H949 abstracts a proton from C2 and transfers it to C7 carbonyl to mediate the cyclization reaction. According to structural similarity to DHs and functional similarity to fungal PTs, we propose that the bacterial PT represents an evolutionary intermediate between the two tailoring domains of type I PKSs. Structural analyses of a Streptomyces viridochromogenes product template (PT) domain suggests molecular and functional similarities with known fungal PTs involved in polyketide synthase activity.
Collapse
Affiliation(s)
- Yuanyuan Feng
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Xu Yang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Huining Ji
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Zixin Deng
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Shuangjun Lin
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Jianting Zheng
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China. .,Joint International Research Laboratory of Metabolic & Developmental Sciences, Shanghai Jiao Tong University, Shanghai, China.
| |
Collapse
|
4
|
Polyketide Starter and Extender Units Serve as Regulatory Ligands to Coordinate the Biosynthesis of Antibiotics in Actinomycetes. mBio 2021; 12:e0229821. [PMID: 34579580 PMCID: PMC8546615 DOI: 10.1128/mbio.02298-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Polyketides are one of the largest categories of secondary metabolites, and their biosynthesis is initiated by polyketide synthases (PKSs) using coenzyme A esters of short fatty acids (acyl-CoAs) as starter and extender units. In this study, we discover a universal regulatory mechanism in which the starter and extender units, beyond direct precursors of polyketides, function as ligands to coordinate the biosynthesis of antibiotics in actinomycetes. A novel acyl-CoA responsive TetR-like regulator (AcrT) is identified in an erythromycin-producing strain of Saccharopolyspora erythraea. AcrT shows the highest binding affinity to the promoter of the PKS-encoding gene eryAI in the DNA affinity capture assay (DACA) and directly represses the biosynthesis of erythromycin. Propionyl-CoA (P-CoA) and methylmalonyl-CoA (MM-CoA) as the starter and extender units for erythromycin biosynthesis can serve as the ligands to release AcrT from PeryAI, resulting in an improved erythromycin yield. Intriguingly, anabolic pathways of the two acyl-CoAs are also suppressed by AcrT through inhibition of the transcription of acetyl-CoA (A-CoA) and P-CoA carboxylase genes and stimulation of the transcription of citrate synthase genes, which is beneficial to bacterial growth. As P-CoA and MM-CoA accumulate, they act as ligands in turn to release AcrT from those targets, resulting in a redistribution of more A-CoA to P-CoA and MM-CoA against citrate. Furthermore, based on analyses of AcrT homologs in Streptomyces avermitilis and Streptomyces coelicolor, it is believed that polyketide starter and extender units have a prevalent, crucial role as ligands in modulating antibiotic biosynthesis in actinomycetes.
Collapse
|
5
|
Rotondo A, Zappalà M, Previti S, Di Chio C, Allegra A, Ettari R. Design and NMR conformational analysis in solution of β5i-selective inhibitors of immunoproteasome. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
6
|
Floreancig PE. Perrhenate Esters as Intermediates in Molecular Complexity-Increasing Reactions. Synlett 2021. [DOI: 10.1055/a-1377-0346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
AbstractAllylic alcohols form perrhenate esters upon reaction with Re2O7 or HOReO3. These species undergo nonstereospecific and nonregiospecific alcohol-transposition reactions through cationic intermediates. Sequencing these nonselective processes with reversible trapping by electrophiles results in cyclization reactions where regio- and stereocontrol are dictated by thermodynamics. The cationic intermediates can also be utilized as electrophiles in intra- or intermolecular dehydrative reactions with nucleophiles. These processes serve as the basis for applications in catalytic syntheses of a wide range of heterocyclic and carbocyclic structures that often show considerable increases in molecular complexity. This Account describes a sequence of events that started from a need to solve a problem for the completion of a natural product synthesis and evolved into a central element in the design of numerous new transformations that proceed under mild conditions from readily accessible substrates.1 Introduction2 Exploratory Studies3 Application to Spiroketal Synthesis4 Reactions with Epoxides as Trapping Agents5 Development of Dehydrative Cyclizations6 Bimolecular Reactions7 Spirocyclic Ether Formation8 Conclusions
Collapse
|
7
|
Morita I, Mori T, Abe I. Enzymatic Formation of Indolactam Scaffold by C−N Bond‐Forming Cytochrome P450 Oxidases in Teleocidin Biosynthesis. Chemistry 2020; 27:2963-2972. [DOI: 10.1002/chem.202003899] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/29/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Iori Morita
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Takahiro Mori
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
- Collaborative Research Institute for Innovative Microbiology The University of Tokyo 1-1-1 Yayoi Bunkyo-ku Tokyo 113–8657 Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
- Collaborative Research Institute for Innovative Microbiology The University of Tokyo 1-1-1 Yayoi Bunkyo-ku Tokyo 113–8657 Japan
| |
Collapse
|
8
|
Sun LQ, Mull E, D'Andrea S, Zheng B, Hiebert S, Gillis E, Bowsher M, Kandhasamy S, Baratam VR, Puttaswamy S, Pulicharla N, Vishwakrishnan S, Reddy S, Trivedi R, Sinha S, Sivaprasad S, Rao A, Desai S, Ghosh K, Anumula R, Kumar A, Rajamani R, Wang YK, Fang H, Mathur A, Rampulla R, Zvyaga TA, Mosure K, Jenkins S, Falk P, Tagore DM, Chen C, Rendunchintala K, Loy J, Meanwell NA, McPhee F, Scola PM. Discovery of BMS-986144, a Third-Generation, Pan-Genotype NS3/4A Protease Inhibitor for the Treatment of Hepatitis C Virus Infection. J Med Chem 2020; 63:14740-14760. [PMID: 33226226 DOI: 10.1021/acs.jmedchem.0c01296] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The discovery of a pan-genotypic hepatitis C virus (HCV) NS3/4A protease inhibitor based on a P1-P3 macrocyclic tripeptide motif is described. The all-carbon tether linking the P1-P3 subsites of 21 is functionalized with alkyl substituents, which are shown to effectively modulate both potency and absorption, distribution, metabolism, and excretion (ADME) properties. The CF3Boc-group that caps the P3 amino moiety was discovered to be an essential contributor to metabolic stability, while positioning a methyl group at the C1 position of the P1' cyclopropyl ring enhanced plasma trough values following oral administration to rats. The C7-fluoro, C6-CD3O substitution pattern of the P2* isoquinoline heterocycle of 21 was essential to securing the targeted potency, pharmacokinetic (PK), and toxicological profiles. The C6-CD3O redirected metabolism away from a problematic pathway, thereby circumventing the time-dependent cytochrome P (CYP) 450 inhibition observed with the C6-CH3O prototype.
Collapse
Affiliation(s)
- Li-Qiang Sun
- Bristol Myers Squibb Research and Early Development, Route 206 & Province Line Road, Princeton, New Jersey 08543, United States
| | - Eric Mull
- Bristol Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, United States
| | - Stanley D'Andrea
- Bristol Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, United States
| | - Barbara Zheng
- Bristol Myers Squibb Research and Early Development, Route 206 & Province Line Road, Princeton, New Jersey 08543, United States
| | - Sheldon Hiebert
- Bristol Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, United States
| | - Eric Gillis
- Bristol Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, United States
| | - Michael Bowsher
- Bristol Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, United States
| | - Sarkunam Kandhasamy
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Venkata Rao Baratam
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Sunitha Puttaswamy
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Nagalakshmi Pulicharla
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Sureshbabu Vishwakrishnan
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Subba Reddy
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Ravi Trivedi
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Sarmistha Sinha
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Sankar Sivaprasad
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Abhijith Rao
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Salil Desai
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Kaushik Ghosh
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Rushith Anumula
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Amit Kumar
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Ramkumar Rajamani
- Bristol Myers Squibb Research and Early Development, 100 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Ying-Kai Wang
- Bristol Myers Squibb Research and Early Development, Route 206 & Province Line Road, Princeton, New Jersey 08543, United States
| | - Hua Fang
- Bristol Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, United States
| | - Arvind Mathur
- Bristol Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, United States
| | - Richard Rampulla
- Bristol Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, United States
| | - Tatyana A Zvyaga
- Bristol Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, United States
| | - Kathy Mosure
- Bristol Myers Squibb Research and Early Development, 100 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Susan Jenkins
- Bristol Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, United States
| | - Paul Falk
- Bristol Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, United States
| | - Debarati M Tagore
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - Chaoqun Chen
- Bristol Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, United States
| | - Kishore Rendunchintala
- Biocon-Bristol Myers Squibb Research and Development Center, Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bangalore 560099, India
| | - James Loy
- Bristol Myers Squibb Research and Early Development, 100 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Nicholas A Meanwell
- Bristol Myers Squibb Research and Early Development, Route 206 & Province Line Road, Princeton, New Jersey 08543, United States
| | - Fiona McPhee
- Bristol Myers Squibb Research and Early Development, 100 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Paul M Scola
- Bristol Myers Squibb Research and Early Development, 100 Binney Street, Cambridge, Massachusetts 02142, United States
| |
Collapse
|
9
|
Amino [13]-macrodilactones: Synthesis, derivatization, and structural motifs. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
10
|
Chen C, Bosko C, McGeough CP, McLean R, Zaino AM, Kyle Hadden M, Peczuh MW. Exploring the physicochemical and antiproliferative properties of biaryl-linked [13]-macrodilactones. Bioorg Med Chem 2020; 28:115671. [PMID: 33069068 DOI: 10.1016/j.bmc.2020.115671] [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: 11/26/2019] [Revised: 07/20/2020] [Accepted: 07/22/2020] [Indexed: 10/23/2022]
Abstract
A macrocyclic motif fosters productive protein-small molecule interactions. There are numerous examples of both natural product and designed, synthetic macrocycles that modulate the immune system, slow microbial infection, or kill eukaryotic cells. Reported here are the synthesis, physicochemical characterization, and antiproliferative activity of a group of [13]-macrodilactones decorated with a pendant biaryl moiety. Biaryl analogs were prepared by Suzuki reactions conducted on a common intermediate that contained a bromophenyl unit alpha to one of the carbonyls of the [13]-macrodilactone. Principal component analysis placed the new compounds in physicochemical context relative to a variety of pharmaceuticals and natural products. Modest inhibition of proliferation was observed in ASZ cells, a murine basal cell carcinoma line. This work underscores the value of an approach toward the identification of bioactive compounds that places the evaluation of physicochemical parameters early in the search process.
Collapse
Affiliation(s)
- Chengsheng Chen
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road U3060, Storrs, CT, United States
| | - Cristin Bosko
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road U3060, Storrs, CT, United States
| | - Catherine P McGeough
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road U3060, Storrs, CT, United States
| | - Ryan McLean
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road U3060, Storrs, CT, United States
| | - Angela M Zaino
- Department of Pharmaceutical Sciences, School of Pharmacy, 69 N. Eagleville Road U3092, University of Connecticut, Storrs, CT 06269, United States
| | - M Kyle Hadden
- Department of Pharmaceutical Sciences, School of Pharmacy, 69 N. Eagleville Road U3092, University of Connecticut, Storrs, CT 06269, United States
| | - Mark W Peczuh
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road U3060, Storrs, CT, United States
| |
Collapse
|
11
|
Rutledge KM, Griesbach C, Mercado BQ, Peczuh MW. Structures of three disubstituted [13]-macrodilactones reveal effects of substitution on macrocycle conformation. Acta Crystallogr E Crystallogr Commun 2020; 76:1617-1623. [PMID: 33117575 PMCID: PMC7534246 DOI: 10.1107/s2056989020012037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 08/31/2020] [Indexed: 11/18/2022]
Abstract
The synthesis and crystal structures of three new disubstituted [13]-macrodilactones, trans-4,8-dimethyl-1,10-dioxacyclotridec-5-ene-2,9-dione, cis-4-(4-bromophenyl)-13-methyl-1,10-dioxacyclotridec-5-ene-2,9-dione, and trans-11-methyl-4-phenyl-1,10-dioxacyclotridec-5-ene-2,9-dione are reported and their conformations are put in the context of other [13]-macrodilactone structures reported previously, showing that the number, location, and relative disposition of groups attached at the termini of planar units of the [13]-macrodilactones subtly influence their aspect ratios. The synthesis and crystal structures of three new disubstituted [13]-macrodilactones, namely, trans-4,8-dimethyl-1,10-dioxacyclotridec-5-ene-2,9-dione, C13H20O4, I, cis-4-(4-bromophenyl)-13-methyl-1,10-dioxacyclotridec-5-ene-2,9-dione C18H21BrO4, II, and trans-11-methyl-4-phenyl-1,10-dioxacyclotridec-5-ene-2,9-dione, C18H22O4, III, are reported and their conformations are put in the context of other [13]-macrodilactone structures reported previously. Together, they show that the number, location, and relative disposition of groups attached at the termini of planar units of the [13]-macrodilactones subtly influence their aspect ratios.
Collapse
|
12
|
Malico AA, Nichols L, Williams GJ. Synthetic biology enabling access to designer polyketides. Curr Opin Chem Biol 2020; 58:45-53. [PMID: 32758909 DOI: 10.1016/j.cbpa.2020.06.003] [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: 03/17/2020] [Revised: 05/08/2020] [Accepted: 06/11/2020] [Indexed: 12/18/2022]
Abstract
The full potential of polyketide discovery has yet to be reached owing to a lack of suitable technologies and knowledge required to advance engineering of polyketide biosynthesis. Recent investigations on the discovery, enhancement, and non-natural use of these biosynthetic gene clusters via computational biology, metabolic engineering, structural biology, and enzymology-guided approaches have facilitated improved access to designer polyketides. Here, we discuss recent successes in gene cluster discovery, host strain engineering, precursor-directed biosynthesis, combinatorial biosynthesis, polyketide tailoring, and high-throughput synthetic biology, as well as challenges and outlooks for rapidly generating useful target polyketides.
Collapse
Affiliation(s)
- Alexandra A Malico
- Department of Chemistry, NC State University, Raleigh, NC, 27695, United States
| | - Lindsay Nichols
- Department of Chemistry, NC State University, Raleigh, NC, 27695, United States
| | - Gavin J Williams
- Department of Chemistry, NC State University, Raleigh, NC, 27695, United States; Comparative Medicine Institute, NC State University, Raleigh, NC, 27695, United States.
| |
Collapse
|
13
|
Drufva EE, Hix EG, Bailey CB. Site directed mutagenesis as a precision tool to enable synthetic biology with engineered modular polyketide synthases. Synth Syst Biotechnol 2020; 5:62-80. [PMID: 32637664 PMCID: PMC7327777 DOI: 10.1016/j.synbio.2020.04.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/01/2020] [Accepted: 04/06/2020] [Indexed: 12/04/2022] Open
Abstract
Modular polyketide synthases (PKSs) are a multidomain megasynthase class of biosynthetic enzymes that have great promise for the development of new compounds, from new pharmaceuticals to high value commodity and specialty chemicals. Their colinear biosynthetic logic has been viewed as a promising platform for synthetic biology for decades. Due to this colinearity, domain swapping has long been used as a strategy to introduce molecular diversity. However, domain swapping often fails because it perturbs critical protein-protein interactions within the PKS. With our increased level of structural elucidation of PKSs, using judicious targeted mutations of individual residues is a more precise way to introduce molecular diversity with less potential for global disruption of the protein architecture. Here we review examples of targeted point mutagenesis to one or a few residues harbored within the PKS that alter domain specificity or selectivity, affect protein stability and interdomain communication, and promote more complex catalytic reactivity.
Collapse
Key Words
- ACP, acyl carrier protein
- AT, acyltransferase
- DEBS, 6-deoxyerthronolide B synthase
- DH, dehydratase
- EI, enoylisomerase
- ER, enoylreductase
- KR, ketoreductase
- KS, ketosynthase
- LM, loading module
- MT, methyltransferase
- Mod, module
- PKS, polyketide synthase
- PS, pyran synthase
- Polyketide synthase
- Protein engineering
- Rational design
- SNAC, N-acetyl cysteamine
- Saturation mutagenesis
- Site directed mutagenesis
- Synthetic biology
Collapse
Affiliation(s)
- Erin E. Drufva
- Department of Chemistry, University of Tennessee-Knoxville, Knoxville, TN, 37996, USA
| | - Elijah G. Hix
- Department of Chemistry, University of Tennessee-Knoxville, Knoxville, TN, 37996, USA
| | - Constance B. Bailey
- Department of Chemistry, University of Tennessee-Knoxville, Knoxville, TN, 37996, USA
| |
Collapse
|
14
|
Sanford AB, Tollefson EJ, Jarvo ER. Stereospecific Cross-Coupling Reactions Provide Conformationally-Biased Arylalkanes with Anti-Leukemia Activity. Isr J Chem 2020; 60:402-405. [PMID: 33442068 PMCID: PMC7799436 DOI: 10.1002/ijch.201900071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 08/15/2019] [Indexed: 11/07/2022]
Abstract
A focused small library of carbamates and alcohols was prepared employing stereospecific Kumada-ring opening reactions of tetrahydropyrans. The core framework of the library members is acyclic and incorporates 1,3-substituents, to provide a conformational bias in avoiding syn-pentane interactions. A new compound with micromolar activity against MOLT-4, CCRF-CEM, and HL-60(TB) leukemia cell lines was identified from this series.
Collapse
Affiliation(s)
- Amberly B Sanford
- Department of Chemistry, University of California, Irvine, Natural Sciences II, Irvine, CA, 92697
| | - Emily J Tollefson
- Department of Chemistry, University of California, Irvine, Natural Sciences II, Irvine, CA, 92697
| | - Elizabeth R Jarvo
- Department of Chemistry, University of California, Irvine, Natural Sciences II, Irvine, CA, 92697
| |
Collapse
|
15
|
Massicard JM, Soligot C, Weissman KJ, Jacob C. Manipulating polyketide stereochemistry by exchange of polyketide synthase modules. Chem Commun (Camb) 2020; 56:12749-12752. [DOI: 10.1039/d0cc05068g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Exchange of polyketide synthase (PKS) modules by genetic engineering leads to efficient modification of polyketide stereochemistry.
Collapse
Affiliation(s)
| | - Claire Soligot
- Université de Lorraine
- UR AFPA
- USC 340 INRAE
- F-54000 Nancy
- France
| | | | | |
Collapse
|
16
|
Appavoo SD, Huh S, Diaz DB, Yudin AK. Conformational Control of Macrocycles by Remote Structural Modification. Chem Rev 2019; 119:9724-9752. [DOI: 10.1021/acs.chemrev.8b00742] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Solomon D. Appavoo
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario, Canada M5S 3H6
| | - Sungjoon Huh
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario, Canada M5S 3H6
| | - Diego B. Diaz
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario, Canada M5S 3H6
| | - Andrei K. Yudin
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario, Canada M5S 3H6
| |
Collapse
|
17
|
Maruca A, Ambrosio FA, Lupia A, Romeo I, Rocca R, Moraca F, Talarico C, Bagetta D, Catalano R, Costa G, Artese A, Alcaro S. Computer-based techniques for lead identification and optimization I: Basics. PHYSICAL SCIENCES REVIEWS 2019. [DOI: 10.1515/psr-2018-0113] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThis chapter focuses on computational techniques for identifying and optimizing lead molecules, with a special emphasis on natural compounds. A number of case studies have been specifically discussed, such as the case of the naphthyridine scaffold, discovered through a structure-based virtual screening (SBVS) and proposed as the starting point for further lead optimization process, to enhance its telomeric RNA selectivity. Another example is the case of Liphagal, a tetracyclic meroterpenoid extracted fromAka coralliphaga, known as PI3Kα inhibitor, provide an evidence for the design of new active congeners against PI3Kα using molecular dynamics (MD) simulations. These are only two of the numerous examples of the computational techniques’ powerful in drug design and drug discovery fields. Finally, the design of drugs that can simultaneously interact with multiple targets as a promising approach for treating complicated diseases has been reported. An example of polypharmacological agents are the compounds extracted from mushrooms identified by means of molecular docking experiments. This chapter may be a useful manual of molecular modeling techniques used in the lead-optimization and lead identification processes.
Collapse
|
18
|
Henry JL, Wilson MR, Mulligan MP, Quinn TR, Sackett DL, Taylor RE. Synthesis, conformational preferences, and biological activity of conformational analogues of the microtubule-stabilizing agents, (-)-zampanolide and (-)-dactylolide. MEDCHEMCOMM 2019; 10:800-805. [PMID: 31191870 PMCID: PMC6540953 DOI: 10.1039/c9md00164f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 04/08/2019] [Indexed: 01/07/2023]
Abstract
Zampanolide and dactylolide are microtubule-stabilizing polyketides possessing potent cytotoxicity towards a variety of cancer cell lines. Using our understanding of the conformational preferences of the macrolide core in both natural products, we hypothesized that analogues lacking the C17-methyl group would maintain the necessary conformation for bioactivity while reducing the number of synthetic manipulations necessary for their synthesis. Analogues 3, 4 and 5 were prepared via total synthesis, and their conformational preferences were determined through computational and high-field NMR studies. While no observable activities were present in dactylolide analogues 3 and 4, zampanolide analogue 5 exhibited sub-micromolar cytotoxicity. Herein, we describe these efforts towards understanding the structure- and conformation-activity relationships of dactylolide and zampanolide.
Collapse
Affiliation(s)
- Jeffrey L Henry
- The Warren Family Research Center for Drug Discovery and Development and the Department of Chemistry & Biochemistry , University of Notre Dame , Notre Dame , IN 46556-5670 , USA .
| | - Matthew R Wilson
- Vertex Pharmaceuticals , 50 Northern Ave , Boston , MA 02210 , USA
| | - Michael P Mulligan
- The Warren Family Research Center for Drug Discovery and Development and the Department of Chemistry & Biochemistry , University of Notre Dame , Notre Dame , IN 46556-5670 , USA .
| | - Taylor R Quinn
- The Warren Family Research Center for Drug Discovery and Development and the Department of Chemistry & Biochemistry , University of Notre Dame , Notre Dame , IN 46556-5670 , USA .
| | - Dan L Sackett
- Eunice Kennedy Shriver National Institute of Child Health and Human Development , National Institutes of Health , Bethesda , MD 20892 , USA
| | - Richard E Taylor
- The Warren Family Research Center for Drug Discovery and Development and the Department of Chemistry & Biochemistry , University of Notre Dame , Notre Dame , IN 46556-5670 , USA .
| |
Collapse
|
19
|
Caron G, Kihlberg J, Ermondi G. Intramolecular hydrogen bonding: An opportunity for improved design in medicinal chemistry. Med Res Rev 2019; 39:1707-1729. [PMID: 30659634 DOI: 10.1002/med.21562] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/18/2018] [Accepted: 12/19/2019] [Indexed: 12/14/2022]
Abstract
Recent literature shows that intramolecular hydrogen bond (IMHB) formation can positively impact upon the triad of permeability, solubility, and potency of drugs and candidates. IMHB modulation can be applied to compounds in any chemical space as a means for discovering drug candidates with both acceptable potency and absorption, distribution, metabolism, and excretion-Tox profiles. Integrating IMHB formation in design of drugs is, therefore, an exciting and timely challenge for modern medicinal chemistry. In this review, we first provide some background about IMHBs from the medicinal chemist's point of view and highlight some IMHB-associated misconceptions. Second, we propose a classification of IMHBs for drug discovery purposes, review the most common in silico tactics to include IMHBs in lead optimization and list some experimental physicochemical descriptors, which quantify the propensity of compounds to form IMHBs. By focusing on the compounds size and the number of IMHBs that can potentially be formed, we also outline the major difficulties encountered when designing compounds based on the inclusion of IMHBs. Finally, we discuss recent case studies illustrating the application of IMHB to optimize cell permeability and physicochemical properties of small molecules, cyclic peptides and macrocycles.
Collapse
Affiliation(s)
- Giulia Caron
- Molecular Biotechnology and Health Sciences Department, University of Torino, Torino, Italy
| | - Jan Kihlberg
- Department of Chemistry - BMC, Uppsala University, Uppsala, Sweden
| | - Giuseppe Ermondi
- Molecular Biotechnology and Health Sciences Department, University of Torino, Torino, Italy
| |
Collapse
|
20
|
Lenci E, Menchi G, Saldívar-Gonzalez FI, Medina-Franco JL, Trabocchi A. Bicyclic acetals: biological relevance, scaffold analysis, and applications in diversity-oriented synthesis. Org Biomol Chem 2019; 17:1037-1052. [DOI: 10.1039/c8ob02808g] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The chemoinformatics analysis of fused, spiro, and bridged bicyclic acetals is instrumental for the DOS of natural product-inspired molecular collections.
Collapse
Affiliation(s)
- Elena Lenci
- Department of Chemistry “Ugo Schiff”
- University of Florence
- 50019 Sesto Fiorentino
- Italy
| | - Gloria Menchi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- 50019 Sesto Fiorentino
- Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM)
| | - Fernanda I. Saldívar-Gonzalez
- School of Chemistry
- Department of Pharmacy
- Universidad Nacional Autónoma de México
- Avenida Universidad 3000
- Mexico City 04510
| | - José L. Medina-Franco
- School of Chemistry
- Department of Pharmacy
- Universidad Nacional Autónoma de México
- Avenida Universidad 3000
- Mexico City 04510
| | - Andrea Trabocchi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- 50019 Sesto Fiorentino
- Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM)
| |
Collapse
|
21
|
Massaro NP, Stevens JC, Chatterji A, Sharma I. Stereoselective Synthesis of Diverse Lactones through a Cascade Reaction of Rhodium Carbenoids with Ketoacids. Org Lett 2018; 20:7585-7589. [PMID: 30485110 DOI: 10.1021/acs.orglett.8b03327] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A convergent cascade approach for the stereoselective synthesis of diverse lactones is described. The Rh2(TFA)4-catalyzed cascade reaction proceeds via a carboxylic acid O-H insertion/aldol cyclization with high chemo-, regio-, and diastereoselectivity. The cascade reaction provides quick access to highly functionalized γ-butyro- and δ-valerolactones from readily accessible ketoacid and diazo synthons. To demonstrate the utility of this approach, a thermally induced oxy-Cope ring-expansion strategy has been incorporated in the cascade sequence to access medium-sized lactones, which can undergo a serendipitous rearrangement to form spiro-lactones through an intramolecular aldol/trans-lactonization sequence. The reaction has proven to be general, with a range of ketoacids and diazo carbonyls to provide functionalized lactones of varying ring sizes.
Collapse
Affiliation(s)
- Nicholas P Massaro
- Department of Chemistry and Biochemistry, and Institute of Natural Products Applications and Research Technologies , University of Oklahoma , 101 Stephenson Parkway , Norman , Oklahoma 73071 , United States
| | - Joseph C Stevens
- Department of Chemistry and Biochemistry, and Institute of Natural Products Applications and Research Technologies , University of Oklahoma , 101 Stephenson Parkway , Norman , Oklahoma 73071 , United States
| | - Aayushi Chatterji
- Department of Chemistry and Biochemistry, and Institute of Natural Products Applications and Research Technologies , University of Oklahoma , 101 Stephenson Parkway , Norman , Oklahoma 73071 , United States
| | - Indrajeet Sharma
- Department of Chemistry and Biochemistry, and Institute of Natural Products Applications and Research Technologies , University of Oklahoma , 101 Stephenson Parkway , Norman , Oklahoma 73071 , United States
| |
Collapse
|
22
|
Molecular Conformations and Biological Activity of N-Hetaryl(aryl)alkyl-4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxamides. Sci Pharm 2018. [DOI: 10.3390/scipharm86040050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The analysis of our previous studies on the search for synthetic analgesics among N-R-amides of bicyclic hetaryl-3-carboxylic acids has been performed; on its basis N-hetaryl(aryl)-alkyl-4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxamides have been selected as new study objects. The “one pot synthesis” of these compounds, which is simple to perform and at the same time highly effective, has been offered. The method consists in the initial reaction of 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylic acid and N,N′-carbonyldiimidazole in anhydrous N,N-dimethylformamide with the subsequent amidation of imidazolide formed with hetarylalkyl- or benzylamines in the same solvent. The peculiarities of 1H- and 13C-NMR spectra of the substances obtained, as well as their electrospray ionization liquid chromato-mass spectra are discussed. According to the results of the pharmacological tests carried out on the model of carrageenan inflammation it has been found that all without exception N-hetaryl(aryl)alkyl-4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxamides demonstrate the statistically significant analgesic and anti-inflammatory properties. Among the substances presented in this article analgesics and antiphlogistics, which increase the pain threshold and suppress the inflammatory response more effectively than Lornoxicam and Diclofenac in the same doses, have been identified. The molecular and crystal structures of a large group of the substances synthesized have been studied by X-ray diffraction analysis. Comparison of these data with the results of biological tests has revealed the fact of excellent correlation between the molecular conformations of N-hetaryl(aryl)alkyl-4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxamides recorded in the crystal and the potency of their analgesic effect. N-Thiophen-2-ylmethyl- and N-4-methoxybenzyl-amides of 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylic acid has shown a high analgesic and anti-inflammatory effect, therefore, they deserve more careful research.
Collapse
|
23
|
Hong SW, Singh AJ, Patel V, Russell ER, Field JJ, Miller JH, Northcote PT. Peloruside E (22-Norpeloruside A), a Pelorusane Macrolide from the New Zealand Marine Sponge Mycale hentscheli, Retains Microtubule-Stabilizing Properties. JOURNAL OF NATURAL PRODUCTS 2018; 81:2125-2128. [PMID: 30188708 DOI: 10.1021/acs.jnatprod.8b00557] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A new peloruside congener, peloruside E (5), has been isolated in sub-milligram quantities from a specimen of the New Zealand marine sponge Mycale hentscheli. The structure of 5 differs from the parent compound peloruside A (1) by replacement of the C-10 gem-dimethyl moiety with a monomethyl substituent and represents the first structural deviation in the pelorusane scaffold. Peloruside E (5) is potently antiproliferative (HL-60, IC50 90 nM, cf. 1, 19 nM) and polymerizes purified tubulin, albeit at a rate lower than that of 1.
Collapse
Affiliation(s)
- Sa Weon Hong
- School of Chemical and Physical Sciences , Victoria University of Wellington , Wellington 6012 , New Zealand
- Centre for Biodiscovery , Victoria University of Wellington , Wellington 6012 , New Zealand
| | - A Jonathan Singh
- Centre for Biodiscovery , Victoria University of Wellington , Wellington 6012 , New Zealand
- Ferrier Research Institute , Victoria University of Wellington , Wellington 6012 , New Zealand
| | - Vimal Patel
- Centre for Biodiscovery , Victoria University of Wellington , Wellington 6012 , New Zealand
- School of Biological Sciences , Victoria University of Wellington , Wellington 6012 , New Zealand
| | - Euan R Russell
- Centre for Biodiscovery , Victoria University of Wellington , Wellington 6012 , New Zealand
- School of Biological Sciences , Victoria University of Wellington , Wellington 6012 , New Zealand
| | - Jessica J Field
- Centre for Biodiscovery , Victoria University of Wellington , Wellington 6012 , New Zealand
- School of Biological Sciences , Victoria University of Wellington , Wellington 6012 , New Zealand
| | - John H Miller
- Centre for Biodiscovery , Victoria University of Wellington , Wellington 6012 , New Zealand
- School of Biological Sciences , Victoria University of Wellington , Wellington 6012 , New Zealand
| | - Peter T Northcote
- Centre for Biodiscovery , Victoria University of Wellington , Wellington 6012 , New Zealand
- Ferrier Research Institute , Victoria University of Wellington , Wellington 6012 , New Zealand
| |
Collapse
|
24
|
Larsen EM, Chang CF, Sakata-Kato T, Arico JW, Lombardo VM, Wirth DF, Taylor RE. Conformation-guided analogue design identifies potential antimalarial compounds through inhibition of mitochondrial respiration. Org Biomol Chem 2018; 16:5403-5406. [PMID: 30009295 PMCID: PMC7487978 DOI: 10.1039/c8ob01257a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The synthesis of a 2-methyl-substituted analogue of the natural product, neopeltolide, is reported in an effort to analyze the importance of molecular conformation and ligand-target interactions in relation to biological activity. The methyl substitution was incorporated via highly diastereoselective ester enolate alkylation of a late-stage intermediate. Coupling of the oxazole sidechain provided 2-methyl-neopeltolide and synthetic neopeltolide via total synthesis. The substitution was shown to maintain the conformational preferences of its biologically active parent compound through computer modeling and NMR studies. Both compounds were shown to be potential antimalarial compounds through the inhibition of mitochondrial respiration in P. falciparum parasites.
Collapse
Affiliation(s)
- Erik M Larsen
- Department of Chemistry & Biochemistry and the Warren Family Research Center for Drug Discovery, University of Notre Dame, Notre Dame, IN 46556, USA.
| | | | | | | | | | | | | |
Collapse
|
25
|
Reiss A, Maier ME. Synthesis of a Leiodermatolide Analogue with a Dienyl Side Chain. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800693] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Anita Reiss
- Institut für Organische Chemie; Eberhard Karls Universität Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Martin E. Maier
- Institut für Organische Chemie; Eberhard Karls Universität Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
| |
Collapse
|
26
|
Shi T, Liu L, Tao W, Luo S, Fan S, Wang XL, Bai L, Zhao YL. Theoretical Studies on the Catalytic Mechanism and Substrate Diversity for Macrocyclization of Pikromycin Thioesterase. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01156] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ting Shi
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Lanxuan Liu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Wentao Tao
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Shenggan Luo
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Shuobing Fan
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Xiao-Lei Wang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Linquan Bai
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Yi-Lei Zhao
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| |
Collapse
|
27
|
Moore AF, Newman DJ, Ranganathan S, Liu F. Imaginative Order from Reasonable Chaos: Conformation-Driven Activity and Reactivity in Exploring Protein–Ligand Interactions. Aust J Chem 2018. [DOI: 10.1071/ch18416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Sir Derek Barton’s seminal work on steroid conformational analysis opened up a new era of enquiry into how the preferred conformation of any molecule could have profound effects on its physical–chemical properties and activities. Conformation-based effects on molecular activity and reactivity continue to manifest, with one key area of investigation currently focussed on conformational entropy in driving protein–ligand interactions. Carrying on from Barton’s initial insight on natural product conformational properties, new questions now address how conformational flexibility within a bioactive natural product structural framework (reasonable chaos), can be directed to confer dynamically new protein–ligand interactions beyond the basic lock–key model (imaginative order). Here we summarise our work on exploring conformational diversity from fluorinated natural product fragments, and how this approach of conformation-coupled diversity-oriented synthesis can be used to iteratively derive ligands with enhanced specificity against highly homologous protein domains. Our results demonstrate that the conformation entropic states of highly conserved protein domains differ significantly, and this conformational diversity, beyond primary sequence analysis, can be duly captured and exploited by natural-product derived ligands with complementary conformational dynamics for enhancing recognition specificity in drug lead discovery.
Collapse
|
28
|
Rutledge KM, Hamlin TA, Baldisseri DM, Bickelhaupt FM, Peczuh MW. Macrocycles All Aflutter: Substitution at an Allylic Center Reveals the Conformational Dynamics of [13]‐Macrodilactones. Chem Asian J 2017; 12:2623-2633. [DOI: 10.1002/asia.201700997] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 08/04/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Kelli M. Rutledge
- Department of Chemistry University of Connecticut 55 N. Eagleville Road U-3060 Storrs CT 06269 USA
| | - Trevor A. Hamlin
- Department of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling Vrije Universiteit Amsterdam, NL- 1081 HV Amsterdam The Netherlands
| | - Donna M. Baldisseri
- Bruker BioSpin Corporation 15 Fortune Drive, Manning Park Billerica MA 01821 USA
| | - F. Matthias Bickelhaupt
- Department of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling Vrije Universiteit Amsterdam, NL- 1081 HV Amsterdam The Netherlands
- Institute of Molecules and Materials Radboud University 6525 AJ Nijmegen The Netherlands
| | - Mark W. Peczuh
- Department of Chemistry University of Connecticut 55 N. Eagleville Road U-3060 Storrs CT 06269 USA
| |
Collapse
|
29
|
Rohrs TM, Qin Q, Floreancig PE. Re 2
O 7
-Mediated Dehydrative Cyclization Reactions: Total Synthesis of Herboxidiene and Its 12-Desmethyl Analogue. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705924] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Tyler M. Rohrs
- Department of Chemistry; University of Pittsburgh; Pittsburgh PA 15260 USA
| | - Qi Qin
- Department of Chemistry; University of Pittsburgh; Pittsburgh PA 15260 USA
| | - Paul E. Floreancig
- Department of Chemistry; University of Pittsburgh; Pittsburgh PA 15260 USA
| |
Collapse
|
30
|
Rohrs TM, Qin Q, Floreancig PE. Re 2 O 7 -Mediated Dehydrative Cyclization Reactions: Total Synthesis of Herboxidiene and Its 12-Desmethyl Analogue. Angew Chem Int Ed Engl 2017; 56:10900-10904. [PMID: 28686815 DOI: 10.1002/anie.201705924] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Indexed: 12/27/2022]
Abstract
Re2 O7 catalysis effects efficient and stereoselective dehydrative cyclization reactions from monoallylic diols, with stereocontrol arising from thermodynamic equilibration. This method was applied to a rapid synthesis of the spliceosome inhibitor herboxidiene. The route was also utilized for the synthesis of an analogue that highlights the importance of a single methyl group in biasing the conformation in the acyclic region of the molecule.
Collapse
Affiliation(s)
- Tyler M Rohrs
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Qi Qin
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Paul E Floreancig
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| |
Collapse
|
31
|
Yin GP, Wu YR, Yang MH, Li TX, Wang XB, Zhou MM, Lei JL, Kong LY. Citrifurans A-D, Four Dimeric Aromatic Polyketides with New Carbon Skeletons from the Fungus Aspergillus sp. Org Lett 2017; 19:4058-4061. [PMID: 28726414 DOI: 10.1021/acs.orglett.7b01823] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Citrifurans A-D (1-4), metabolized by an Aspergillus sp., are unusual dimers of azaphilone and furanone derivatives. Michael addition was thought to be the pivotal procedure in their biosynthesis, and different addition sites generated two new different carbon skeletons. Their structures were elucidated on the basis of spectroscopic methods, single-crystal X-ray diffraction, chemical conversion, and electronic circular dichroism analyses. Compounds 1-3 showed moderate inhibitory activities against LPS-induced NO production in RAW 264.7 macrophages with IC50 values of 18.3, 22.6, and 25.3 μM, respectively.
Collapse
Affiliation(s)
- Guo-Ping Yin
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Ya-Rong Wu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Ming-Hua Yang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Tian-Xiao Li
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Xiao-Bing Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Miao-Miao Zhou
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Jian-Li Lei
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Ling-Yi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| |
Collapse
|
32
|
Wang L, Neumann H, Spannenberg A, Beller M. Practical in situ-generation of phosphinite ligands for palladium-catalyzed carbonylation of (hetero)aryl bromides forming esters. Chem Commun (Camb) 2017. [PMID: 28628165 DOI: 10.1039/c7cc02828h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An effective method for alkoxycarbonylation of (hetero)aryl bromides is developed in the presence of in situ-generated phosphinite ligands tBu2POR (R = nBu, nPr, Et or Me). For this purpose commercially available tBu2PCl was used as the pre-ligand in the presence of different alcohols. For the first time cross coupling reactions with two alcohols - one generating the ligand, the other used as substrate - were developed. Through this method, ligand optimization can be performed in a more efficient manner and the desired products could be obtained with good yields and selectivity.
Collapse
Affiliation(s)
- Lin Wang
- Leibniz-Institut für Katalyse an der Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany.
| | | | | | | |
Collapse
|
33
|
Woods LM, Arico JW, Frein JD, Sackett DL, Taylor RE. Synthesis and Biological Evaluation of 7-Deoxy-Epothilone Analogues. Int J Mol Sci 2017; 18:E648. [PMID: 28304361 PMCID: PMC5372660 DOI: 10.3390/ijms18030648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 02/06/2017] [Accepted: 02/22/2017] [Indexed: 01/27/2023] Open
Abstract
The synthesis of two deoxygenated analogues of potent epothilones is reported in an effort to analyze the relative importance of molecular conformation and ligand-target interactions to biological activity. 7-deoxy-epothilone D and 7-deoxy-(S)-14-methoxy-epothilone D were prepared through total synthesis and shown to maintain the conformational preferences of their biologically active parent congeners through computer modeling and nuclear magnetic resonance (NMR) studies. The significant decrease in observed potency for each compound suggests that a hydrogen bond between the C7-hydroxyl group and the tubulin binding site plays a critical role in the energetics of binding in the epothilone class of polyketides.
Collapse
Affiliation(s)
- Laura M Woods
- Department of Chemistry and Biochemistry, the Harper Cancer Research Institute, and the Warren Family Research Center for Drug Discovery & Development, University of Notre Dame, Notre Dame, IN 46556, USA.
| | - Joseph W Arico
- Department of Chemistry and Biochemistry, the Harper Cancer Research Institute, and the Warren Family Research Center for Drug Discovery & Development, University of Notre Dame, Notre Dame, IN 46556, USA.
| | - Jeffrey D Frein
- Department of Chemistry and Biochemistry, the Harper Cancer Research Institute, and the Warren Family Research Center for Drug Discovery & Development, University of Notre Dame, Notre Dame, IN 46556, USA.
| | - Dan L Sackett
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Richard E Taylor
- Department of Chemistry and Biochemistry, the Harper Cancer Research Institute, and the Warren Family Research Center for Drug Discovery & Development, University of Notre Dame, Notre Dame, IN 46556, USA.
| |
Collapse
|
34
|
Havemann J, Yurkovich ME, Jenkins R, Harringer S, Tao W, Wen S, Sun Y, Leadlay PF, Tosin M. Chemical probing of thiotetronate bio-assembly. Chem Commun (Camb) 2017; 53:1912-1915. [DOI: 10.1039/c6cc09933e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Chemical ‘chain termination’ probes were utilised for the investigation of thiotetronate antibiotic biosynthesis in the filamentous bacteria Lentzea sp. and Streptomyces thiolactonus NRRL 15439.
Collapse
Affiliation(s)
| | | | | | | | - Weixin Tao
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University)
- Ministry of Education
- Wuhan University School of Pharmaceutical Sciences
- Wuhan 430071
- People's Republic of China
| | - Shishi Wen
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University)
- Ministry of Education
- Wuhan University School of Pharmaceutical Sciences
- Wuhan 430071
- People's Republic of China
| | - Yuhui Sun
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University)
- Ministry of Education
- Wuhan University School of Pharmaceutical Sciences
- Wuhan 430071
- People's Republic of China
| | | | | |
Collapse
|
35
|
Trigili C, Barasoain I, Sánchez-Murcia PA, Bargsten K, Redondo-Horcajo M, Nogales A, Gardner NM, Meyer A, Naylor GJ, Gómez-Rubio E, Gago F, Steinmetz MO, Paterson I, Prota AE, Díaz JF. Structural Determinants of the Dictyostatin Chemotype for Tubulin Binding Affinity and Antitumor Activity Against Taxane- and Epothilone-Resistant Cancer Cells. ACS OMEGA 2016; 1:1192-1204. [PMID: 30023505 PMCID: PMC6044705 DOI: 10.1021/acsomega.6b00317] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 11/28/2016] [Indexed: 05/21/2023]
Abstract
A combined biochemical, structural, and cell biology characterization of dictyostatin is described, which enables an improved understanding of the structural determinants responsible for the high-affinity binding of this anticancer agent to the taxane site in microtubules (MTs). The study reveals that this macrolide is highly optimized for MT binding and that only a few of the structural modifications featured in a library of synthetic analogues resulted in small gains in binding affinity. The high efficiency of the dictyostatin chemotype in overcoming various kinds of clinically relevant resistance mechanisms highlights its potential for therapeutic development for the treatment of drug-resistant tumors. A structural explanation is advanced to account for the synergy observed between dictyostatin and taxanes on the basis of their differential effects on the MT lattice. The X-ray crystal structure of a tubulin-dictyostatin complex and additional molecular modeling have allowed the rationalization of the structure-activity relationships for a set of synthetic dictyostatin analogues, including the highly active hybrid 12 with discodermolide. Altogether, the work reported here is anticipated to facilitate the improved design and synthesis of more efficacious dictyostatin analogues and hybrids with other MT-stabilizing agents.
Collapse
Affiliation(s)
- Chiara Trigili
- Chemical
and Physical Biology, Centro de Investigaciones
Biológicas, CSIC, Ramiro de Maeztu 9, E-28040 Madrid, Spain
| | - Isabel Barasoain
- Chemical
and Physical Biology, Centro de Investigaciones
Biológicas, CSIC, Ramiro de Maeztu 9, E-28040 Madrid, Spain
- E-mail: (J.F.D.)
| | - Pedro A. Sánchez-Murcia
- Área
de Farmacología, Departamento de Ciencias Biomédicas, Universidad de Alcalá, Unidad Asociada al IQM (CSIC), Alcalá de Henares, E-28871 Madrid, Spain
| | - Katja Bargsten
- Department
of Biology and Chemistry Laboratory of Biomolecular Research, Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - Mariano Redondo-Horcajo
- Chemical
and Physical Biology, Centro de Investigaciones
Biológicas, CSIC, Ramiro de Maeztu 9, E-28040 Madrid, Spain
| | - Aurora Nogales
- Instituto
de Estructura de la Materia, Consejo Superior
de Investigaciones Científicas IEM-CSIC, Serrano 121, E-28006 Madrid, Spain
| | - Nicola M. Gardner
- University
Chemical Laboratory, University of Cambridge, Cambridge CB2 1EW, U.K.
| | - Arndt Meyer
- University
Chemical Laboratory, University of Cambridge, Cambridge CB2 1EW, U.K.
| | - Guy J. Naylor
- University
Chemical Laboratory, University of Cambridge, Cambridge CB2 1EW, U.K.
| | - Elena Gómez-Rubio
- Área
de Farmacología, Departamento de Ciencias Biomédicas, Universidad de Alcalá, Unidad Asociada al IQM (CSIC), Alcalá de Henares, E-28871 Madrid, Spain
| | - Federico Gago
- Área
de Farmacología, Departamento de Ciencias Biomédicas, Universidad de Alcalá, Unidad Asociada al IQM (CSIC), Alcalá de Henares, E-28871 Madrid, Spain
| | - Michel O. Steinmetz
- Department
of Biology and Chemistry Laboratory of Biomolecular Research, Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - Ian Paterson
- University
Chemical Laboratory, University of Cambridge, Cambridge CB2 1EW, U.K.
| | - Andrea E. Prota
- Department
of Biology and Chemistry Laboratory of Biomolecular Research, Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - J. Fernando Díaz
- Chemical
and Physical Biology, Centro de Investigaciones
Biológicas, CSIC, Ramiro de Maeztu 9, E-28040 Madrid, Spain
- E-mail: (I.B.)
| |
Collapse
|
36
|
Wilkening I, Gazzola S, Riva E, Parascandolo JS, Song L, Tosin M. Second-generation probes for biosynthetic intermediate capture: towards a comprehensive profiling of polyketide assembly. Chem Commun (Camb) 2016; 52:10392-5. [PMID: 27481638 PMCID: PMC5050551 DOI: 10.1039/c6cc04681a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 07/28/2016] [Indexed: 12/12/2022]
Abstract
Malonyl carba(dethia) N-decanoyl cysteamine methyl esters and novel acetoxymethyl esters were utilised as second-generation probes for polyketide intermediate capture. The use of these tools in vivo led to the characterisation of an almost complete set of biosynthetic intermediates from a modular assembly line, providing a first kinetic overview of intermediate processing leading to complex natural product formation.
Collapse
Affiliation(s)
- Ina Wilkening
- Department of Chemistry, University of Warwick, Library Road, CV4 7AL, UK.
| | - Silvia Gazzola
- Department of Chemistry, University of Warwick, Library Road, CV4 7AL, UK. and Dipartimento di Scienza ed Alta Tecnologia, Universita' dell'Insubria, Via Valleggio 11, 22100 Como, Italy
| | - Elena Riva
- Department of Chemistry, University of Warwick, Library Road, CV4 7AL, UK.
| | | | - Lijiang Song
- Department of Chemistry, University of Warwick, Library Road, CV4 7AL, UK.
| | - Manuela Tosin
- Department of Chemistry, University of Warwick, Library Road, CV4 7AL, UK.
| |
Collapse
|
37
|
Allemann O, Brutsch M, Lukesh JC, Brody DM, Boger DL. Synthesis of a Potent Vinblastine: Rationally Designed Added Benign Complexity. J Am Chem Soc 2016; 138:8376-9. [PMID: 27356080 PMCID: PMC4945418 DOI: 10.1021/jacs.6b04330] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Many natural products, including vinblastine, have not been easily subjected to simplifications in their structures by synthetic means or modifications by late-stage semisynthetic derivatization in ways that enhance their biological potency. Herein, we detail a synthetic vinblastine that incorporates added benign complexity (ABC), which improves activity 10-fold, and is now accessible as a result of advances in the total synthesis of the natural product. The compound incorporates designed added molecular complexity but no new functional groups and maintains all existing structural and conformational features of the natural product. It constitutes a member of an analogue class presently inaccessible by semisynthetic derivatization of the natural product, by its late-stage functionalization, or by biosynthetic means. Rather, it was accessed by synthetic means, using an appropriately modified powerful penultimate single-step vindoline-catharanthine coupling strategy that proceeds with a higher diastereoselectivity than found for the natural product itself.
Collapse
Affiliation(s)
- Oliver Allemann
- Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Manuela Brutsch
- Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - John C. Lukesh
- Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Daniel M. Brody
- Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Dale L. Boger
- Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| |
Collapse
|
38
|
Chen XP, Shi T, Wang XL, Wang J, Chen Q, Bai L, Zhao YL. Theoretical Studies on the Mechanism of Thioesterase-Catalyzed Macrocyclization in Erythromycin Biosynthesis. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01154] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Xiong-Ping Chen
- State
Key Laboratory of Microbial Metabolism, Joint International Research
Laboratory of Metabolic and Developmental Sciences, MOE-LSC, School
of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Ting Shi
- State
Key Laboratory of Microbial Metabolism, Joint International Research
Laboratory of Metabolic and Developmental Sciences, MOE-LSC, School
of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xiao-Lei Wang
- State
Key Laboratory of Microbial Metabolism, Joint International Research
Laboratory of Metabolic and Developmental Sciences, MOE-LSC, School
of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jitao Wang
- State
Key Laboratory of Microbial Metabolism, Joint International Research
Laboratory of Metabolic and Developmental Sciences, MOE-LSC, School
of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Qihua Chen
- State
Key Laboratory of Microbial Metabolism, Joint International Research
Laboratory of Metabolic and Developmental Sciences, MOE-LSC, School
of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Linquan Bai
- State
Key Laboratory of Microbial Metabolism, Joint International Research
Laboratory of Metabolic and Developmental Sciences, MOE-LSC, School
of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yi-Lei Zhao
- State
Key Laboratory of Microbial Metabolism, Joint International Research
Laboratory of Metabolic and Developmental Sciences, MOE-LSC, School
of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| |
Collapse
|
39
|
Giuliano MW, Miller SJ. Site-Selective Reactions with Peptide-Based Catalysts. SITE-SELECTIVE CATALYSIS 2015; 372:157-201. [DOI: 10.1007/128_2015_653] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|