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Song X, Bai S, Li Y, Yi T, Long X, Pu Q, Dang T, Ma M, Ren Q, Qin X. Expedient and divergent synthesis of unnatural peptides through cobalt-catalyzed diastereoselective umpolung hydrogenation. SCIENCE ADVANCES 2023; 9:eadk4950. [PMID: 38117889 PMCID: PMC10732522 DOI: 10.1126/sciadv.adk4950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/20/2023] [Indexed: 12/22/2023]
Abstract
The development of a reliable method for asymmetric synthesis of unnatural peptides is highly desirable and particularly challenging. In this study, we present a versatile and efficient approach that uses cobalt-catalyzed diastereoselective umpolung hydrogenation to access noncanonical aryl alanine peptides. This protocol demonstrates good tolerance toward various functional groups, amino acid sequences, and peptide lengths. Moreover, the versatility of this reaction is illustrated by its successful application in the late-stage functionalization and formal synthesis of various representative chiral natural products and pharmaceutical scaffolds. This strategy eliminates the need for synthesizing chiral noncanonical aryl alanines before peptide formation, and the hydrogenation reaction does not result in racemization or epimerization. The underlying mechanism was extensively explored through deuterium labeling, control experiments, HRMS identification, and UV-Vis spectroscopy, which supported a reasonable CoI/CoIII catalytic cycle. Notably, acetic acid and methanol serve as safe and cost-effective hydrogen sources, while indium powder acts as the terminal electron source.
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Affiliation(s)
- Xinjian Song
- Engineering Research Center of Coptis Development and Utilization, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, 2 Tiansheng Road, Chongqing, 400715, P. R. China
| | - Shuangyi Bai
- Engineering Research Center of Coptis Development and Utilization, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, 2 Tiansheng Road, Chongqing, 400715, P. R. China
| | - Yuan Li
- Engineering Research Center of Coptis Development and Utilization, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, 2 Tiansheng Road, Chongqing, 400715, P. R. China
| | - Tong Yi
- Engineering Research Center of Coptis Development and Utilization, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, 2 Tiansheng Road, Chongqing, 400715, P. R. China
| | - Xinyu Long
- Engineering Research Center of Coptis Development and Utilization, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, 2 Tiansheng Road, Chongqing, 400715, P. R. China
| | - Qinghua Pu
- Engineering Research Center of Coptis Development and Utilization, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, 2 Tiansheng Road, Chongqing, 400715, P. R. China
| | - Ting Dang
- Engineering Research Center of Coptis Development and Utilization, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, 2 Tiansheng Road, Chongqing, 400715, P. R. China
| | - Mengjie Ma
- Engineering Research Center of Coptis Development and Utilization, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, 2 Tiansheng Road, Chongqing, 400715, P. R. China
| | - Qiao Ren
- Engineering Research Center of Coptis Development and Utilization, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, 2 Tiansheng Road, Chongqing, 400715, P. R. China
| | - Xurong Qin
- Engineering Research Center of Coptis Development and Utilization, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, 2 Tiansheng Road, Chongqing, 400715, P. R. China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, No. 94 Wei Jin Road, Tianjin, 300071, P. R. China
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2
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Saha P, Basak D, Biswas S, More PA, Madhavan N. Small Peptidic Ionophore for Calcium Transport. Bioconjug Chem 2022; 33:2143-2148. [DOI: 10.1021/acs.bioconjchem.2c00396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Parichita Saha
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
| | - Debajyoti Basak
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600036, India
| | - Sayantan Biswas
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
| | - Priyanka A. More
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
| | - Nandita Madhavan
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
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3
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Saha P, Kumari Agarwala P, Dadhich R, Adhyapak P, Kapoor S, Madhavan N. Ligand Induced Cu II Transport Restricts Cancer and Mycobacterial Growth: Towards a Plug-and-Select Ion Channel Scaffold. Chembiochem 2021; 22:1424-1429. [PMID: 33347676 DOI: 10.1002/cbic.202000731] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/01/2020] [Indexed: 11/09/2022]
Abstract
Synthetic channels with high ion selectivity are attractive drug targets for diseases involving ion dysregulation. Achieving selective transport of divalent ions is highly challenging due their high hydration energies. A small tripeptide amphiphilic scaffold installed with a pybox ligand selectively transports CuII ions across membranes. The peptide forms stable dimeric pores in the membrane and transports ions by a Cu2+ /H+ antiport mechanism. The ligand-induced excellent CuII selectivity as well as high membrane permeability of the peptide is exploited to promote cancer cell death. The peptide's ability to restrict mycobacterial growth serves as seeds to evolve antibacterial strategies centred on selectively modulating ion homeostasis in pathogens. This simple peptide can potentially function as a universal, yet versatile, scaffold wherein the ion selectivity can be precisely controlled by modifying the ligand at the C terminus.
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Affiliation(s)
- Parichita Saha
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Prema Kumari Agarwala
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Ruchika Dadhich
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Pranav Adhyapak
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Shobhna Kapoor
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Nandita Madhavan
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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4
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Benke BP, Behera H, Madhavan N. Low Molecular Weight Di‐ to Tetrapeptide Transmembrane Cation Transporters. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Bahiru P. Benke
- Department of Chemistry Indian Institute of Technology Madras 600036 Chennai Tamil Nadu India
| | - Harekrushna Behera
- Department of Chemistry Indian Institute of Technology Madras 600036 Chennai Tamil Nadu India
- Department of Chemistry Indian Institute of Technology Bombay 400076 Powai Mumbai India
| | - Nandita Madhavan
- Department of Chemistry Indian Institute of Technology Bombay 400076 Powai Mumbai India
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5
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Mathew B, Ruiz P, Dutta S, Entrekin JT, Zhang S, Patel KD, Simmons MS, Augelli-Szafran CE, Cowell RM, Suto MJ. Structure-activity relationship (SAR) studies of N-(3-methylpyridin-2-yl)-4-(pyridin-2-yl)thiazol-2-amine (SRI-22819) as NF-ҡB activators for the treatment of ALS. Eur J Med Chem 2020; 210:112952. [PMID: 33139114 DOI: 10.1016/j.ejmech.2020.112952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/18/2020] [Accepted: 10/19/2020] [Indexed: 11/25/2022]
Abstract
ALS is a rare type of progressive neurological disease with unknown etiology. It results in the gradual degeneration and death of motor neurons responsible for controlling the voluntary muscles. Identification of mutations in the superoxide dismutase (SOD) 1 gene has been the most significant finding in ALS research. SOD1 abnormalities have been associated with both familial as well as sporadic ALS cases. SOD2 is a highly inducible SOD that performs in concurrence with SOD1 to detoxify ROS. Induction of SOD2 can be obtained through activation of NF-ҡBs. We previously reported that SRI-22819 increases NF-ҡB expression and activation in vitro, but it has poor ADME properties in general and has no oral bioavailability. Our initial studies were focused on direct modifications of SRI-22819. There were active compounds identified but no improvement in microsomal stability was observed. In this context, we focused on making more significant structural changes in the core of the molecule. Ataluren, an oxadiazole compound that promotes read-through and expression of dystrophin in patients with Duchenne muscular dystrophy, bears some structural similarity to SRI-22819. Thus, we synthesized a series of SRI-22819 and Ataluren (PTC124) hybrid compounds. Several compounds from this series exhibited improved activity, microsomal stability and lower calculated polar surface area (PSA). This manuscript describes the synthesis and biological evaluation of SRI-22819 analogs and its hybrid combination with Ataluren.
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Affiliation(s)
- Bini Mathew
- Drug Discovery Division, Southern Research Institute, 2000 Ninth Avenue South, Birmingham, AL, 35205, USA.
| | - Pedro Ruiz
- Drug Discovery Division, Southern Research Institute, 2000 Ninth Avenue South, Birmingham, AL, 35205, USA.
| | - Shilpa Dutta
- Drug Discovery Division, Southern Research Institute, 2000 Ninth Avenue South, Birmingham, AL, 35205, USA.
| | - Jordan T Entrekin
- Drug Discovery Division, Southern Research Institute, 2000 Ninth Avenue South, Birmingham, AL, 35205, USA
| | - Sixue Zhang
- Drug Discovery Division, Southern Research Institute, 2000 Ninth Avenue South, Birmingham, AL, 35205, USA
| | - Kaval D Patel
- Drug Discovery Division, Southern Research Institute, 2000 Ninth Avenue South, Birmingham, AL, 35205, USA
| | - Micah S Simmons
- Drug Discovery Division, Southern Research Institute, 2000 Ninth Avenue South, Birmingham, AL, 35205, USA
| | - Corinne E Augelli-Szafran
- Drug Discovery Division, Southern Research Institute, 2000 Ninth Avenue South, Birmingham, AL, 35205, USA.
| | - Rita M Cowell
- Drug Discovery Division, Southern Research Institute, 2000 Ninth Avenue South, Birmingham, AL, 35205, USA.
| | - Mark J Suto
- Drug Discovery Division, Southern Research Institute, 2000 Ninth Avenue South, Birmingham, AL, 35205, USA.
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Basak D, Saha P, Madhavan N. Basic Design Elements for Tunable Cation Transport Using Picolinic-Acid-Incorporated Tetrapeptides. ChemistrySelect 2018. [DOI: 10.1002/slct.201801612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Debajyoti Basak
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
| | - Parichita Saha
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai 400076, Maharastra India
| | - Nandita Madhavan
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai 400076, Maharastra India
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7
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Adam C, Peters AD, Lizio MG, Whitehead GFS, Diemer V, Cooper JA, Cockroft SL, Clayden J, Webb SJ. The Role of Terminal Functionality in the Membrane and Antibacterial Activity of Peptaibol-Mimetic Aib Foldamers. Chemistry 2018; 24:2249-2256. [PMID: 29210477 DOI: 10.1002/chem.201705299] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Indexed: 01/04/2023]
Abstract
Peptaibols are peptide antibiotics that typically feature an N-terminal acetyl cap, a C-terminal aminoalcohol, and a high proportion of α-aminoisobutyric acid (Aib) residues. To establish how each feature might affect the membrane-activity of peptaibols, biomimetic Aib foldamers with different lengths and terminal groups were synthesised. Vesicle assays showed that long foldamers (eleven Aib residues) with hydrophobic termini had the highest ionophoric activity. C-terminal acids or primary amides inhibited activity, while replacement of an N-terminal acetyl with an azide group made little difference. Crystallography showed that N3 Aib11 CH2 OTIPS folded into a 310 helix 2.91 nm long, which is close to the bilayer hydrophobic width. Planar bilayer conductance assays showed discrete ion channels only for N-acetylated foldamers. However long foldamers with hydrophobic termini had the highest antibacterial activity, indicating that ionophoric activity in vesicles was a better indicator of antibacterial activity than the observation of discrete ion channels.
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Affiliation(s)
- Catherine Adam
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
| | - Anna D Peters
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.,Manchester Institute of Biotechnology, University of Manchester, 131 Princess St, Manchester, M1 7DN, UK
| | - M Giovanna Lizio
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.,Manchester Institute of Biotechnology, University of Manchester, 131 Princess St, Manchester, M1 7DN, UK
| | - George F S Whitehead
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Vincent Diemer
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.,Manchester Institute of Biotechnology, University of Manchester, 131 Princess St, Manchester, M1 7DN, UK
| | - James A Cooper
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - Scott L Cockroft
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - Jonathan Clayden
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
| | - Simon J Webb
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.,Manchester Institute of Biotechnology, University of Manchester, 131 Princess St, Manchester, M1 7DN, UK
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8
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Behera H, Madhavan N. Anion-Selective Cholesterol Decorated Macrocyclic Transmembrane Ion Carriers. J Am Chem Soc 2017; 139:12919-12922. [DOI: 10.1021/jacs.7b07479] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Harekrushna Behera
- Department
of Chemistry, Indian Institute of Technology, Madras, Tamil Nadu 600036, India
| | - Nandita Madhavan
- Department
of Chemistry, Indian Institute of Technology, Madras, Tamil Nadu 600036, India
- Indian Institute of Technology, Bombay, Maharashtra 400076, India
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9
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Basak D, Sridhar S, Bera AK, Madhavan N. A minimalistic tetrapeptide amphiphile scaffold for transmembrane pores with a preference for sodium. Bioorg Med Chem Lett 2017; 27:2886-2889. [DOI: 10.1016/j.bmcl.2017.04.081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 04/17/2017] [Accepted: 04/26/2017] [Indexed: 11/25/2022]
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10
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Optimizing the Readout of Lanthanide-DOTA Complexes for the Detection of Ligand-Bound Copper(I). Molecules 2017; 22:molecules22050802. [PMID: 28505112 PMCID: PMC6154328 DOI: 10.3390/molecules22050802] [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: 03/22/2017] [Revised: 05/05/2017] [Accepted: 05/08/2017] [Indexed: 12/15/2022] Open
Abstract
The CuAAC ‘click’ reaction was used to couple alkyne-functionalized lanthanide-DOTA complexes to a range of fluorescent antennae. Screening of the antenna components was aided by comparison of the luminescent output of the resultant sensors using data normalized to account for reaction conversion as assessed by IR. A maximum 82-fold enhanced signal:background luminescence output was achieved using a Eu(III)-DOTA complex coupled to a coumarin-azide, in a reaction which is specific to the presence of copper(I). This optimized complex provides a new lead design for lanthanide-DOTA complexes which can act as irreversible ‘turn-on’ catalytic sensors for the detection of ligand-bound copper(I).
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11
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Behera H, Ramkumar V, Madhavan N. Triamide macrocyclic chloride receptors via a one-pot tandem reduction–condensation–cyclization reaction. Org Biomol Chem 2017; 15:4937-4940. [DOI: 10.1039/c7ob00642j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A chloride binding triamide macrocycle has been developed in one pot from the corresponding monomer via tandem reduction–condensation–cyclization reactions.
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Affiliation(s)
| | | | - Nandita Madhavan
- Department of Chemistry
- Indian Institute of Technology
- Chennai
- India
- Department of Chemistry
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12
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Basak D, Sridhar S, Bera AK, Madhavan N. Cation–halide transport through peptide pores containing aminopicolinic acid. Org Biomol Chem 2016; 14:4712-7. [DOI: 10.1039/c6ob00592f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aminopicolinic acid incorporated peptides form pores that promote cation–halide co-transport across lipid bilayers and do not show a closed state.
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Affiliation(s)
- Debajyoti Basak
- Department of Chemistry
- Indian institute of Technology
- Chennai 600036
- India
| | - Sucheta Sridhar
- Department of Biotechnology
- Indian institute of Technology
- Chennai 600036
- India
| | - Amal K. Bera
- Department of Biotechnology
- Indian institute of Technology
- Chennai 600036
- India
| | - Nandita Madhavan
- Department of Chemistry
- Indian institute of Technology
- Chennai 600036
- India
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