1
|
Butler E, Florentino L, Cornut D, Gomez-Campillos G, Liu H, Regan AC, Thomas EJ. Synthesis of macrocyclic precursors of the vioprolides. Org Biomol Chem 2019; 16:6935-6960. [PMID: 30226509 DOI: 10.1039/c8ob01756e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The vioprolides are novel depsipeptides that have not been synthesized. However, they have been identified as important targets for synthesis because of their novel biological activities and challenging chemical structures. Following early work on the synthesis of a modified tetrapeptide that contained both the (E)-dehydrobutyrine and thiazoline components of vioprolide D, problems were encountered in taking an (E)-dehydrobutyrine containing intermediate further into the synthesis. A second approach to vioprolides and analogues was therefore investigated in which (E)- and (Z)-dehydrobutyrines were to be introduced by selenoxide elimination very late in the synthesis. A convergent approach to advanced macrocyclic precursors of the vioprolides was then completed using a modified hexapeptide and a dipeptidyl glycerate. In this work, it was necessary to protect the 2-hydroxyl group of the glycerate as its acetate and not as its 2,2,2-trichloroethoxycarbonate. Preliminary studies were carried out on the introduction of the required dehydrobutyrine and thiazoline components into advanced intermediates.
Collapse
Affiliation(s)
- Eibhlin Butler
- The School of Chemistry, The University of Manchester, Manchester, M13 9PL, UK.
| | | | | | | | | | | | | |
Collapse
|
2
|
Lohans CT, van Groesen E, Kumar K, Tooke CL, Spencer J, Paton RS, Brem J, Schofield CJ. A New Mechanism for β-Lactamases: Class D Enzymes Degrade 1β-Methyl Carbapenems through Lactone Formation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711308] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Emma van Groesen
- Department of Chemistry; University of Oxford; Oxford OX1 3TA UK
| | - Kiran Kumar
- Department of Chemistry; University of Oxford; Oxford OX1 3TA UK
| | - Catherine L. Tooke
- School of Cellular and Molecular Medicine; University of Bristol; Bristol BS8 1TD UK
| | - James Spencer
- School of Cellular and Molecular Medicine; University of Bristol; Bristol BS8 1TD UK
| | - Robert S. Paton
- Department of Chemistry; University of Oxford; Oxford OX1 3TA UK
| | - Jürgen Brem
- Department of Chemistry; University of Oxford; Oxford OX1 3TA UK
| | | |
Collapse
|
3
|
Lohans CT, van Groesen E, Kumar K, Tooke CL, Spencer J, Paton RS, Brem J, Schofield CJ. A New Mechanism for β-Lactamases: Class D Enzymes Degrade 1β-Methyl Carbapenems through Lactone Formation. Angew Chem Int Ed Engl 2018; 57:1282-1285. [PMID: 29236332 PMCID: PMC5817396 DOI: 10.1002/anie.201711308] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Indexed: 01/18/2023]
Abstract
β‐Lactamases threaten the clinical use of carbapenems, which are considered antibiotics of last resort. The classical mechanism of serine carbapenemase catalysis proceeds through hydrolysis of an acyl‐enzyme intermediate. We show that class D β‐lactamases also degrade clinically used 1β‐methyl‐substituted carbapenems through the unprecedented formation of a carbapenem‐derived β‐lactone. β‐Lactone formation results from nucleophilic attack of the carbapenem hydroxyethyl side chain on the ester carbonyl of the acyl‐enzyme intermediate. The carbapenem‐derived lactone products inhibit both serine β‐lactamases (particularly class D) and metallo‐β‐lactamases. These results define a new mechanism for the class D carbapenemases, in which a hydrolytic water molecule is not required.
Collapse
Affiliation(s)
| | - Emma van Groesen
- Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | - Kiran Kumar
- Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | - Catherine L Tooke
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, UK
| | - James Spencer
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, UK
| | - Robert S Paton
- Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | - Jürgen Brem
- Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | | |
Collapse
|
4
|
Solorzano C, Antonietti F, Duranti A, Tontini A, Rivara S, Lodola A, Vacondio F, Tarzia G, Piomelli D, Mor M. Synthesis and structure-activity relationships of N-(2-oxo-3-oxetanyl)amides as N-acylethanolamine-hydrolyzing acid amidase inhibitors. J Med Chem 2010; 53:5770-81. [PMID: 20604568 PMCID: PMC2932887 DOI: 10.1021/jm100582w] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The fatty acid ethanolamides (FAEs) are a family of bioactive lipid mediators that include the endogenous agonist of peroxisome proliferator-activated receptor-alpha, palmitoylethanolamide (PEA). FAEs are hydrolyzed intracellularly by either fatty acid amide hydrolase or N-acylethanolamine-hydrolyzing acid amidase (NAAA). Selective inhibition of NAAA by (S)-N-(2-oxo-3-oxetanyl)-3-phenylpropionamide [(S)-OOPP, 7a] prevents PEA degradation in mouse leukocytes and attenuates responses to proinflammatory stimuli. Starting from the structure of 7a, a series of beta-lactones was prepared and tested on recombinant rat NAAA to explore structure-activity relationships (SARs) for this class of inhibitors and improve their in vitro potency. Following the hypothesis that these compounds inhibit NAAA by acylation of the catalytic cysteine, we identified several requirements for recognition at the active site and obtained new potent inhibitors. In particular, (S)-N-(2-oxo-3-oxetanyl)biphenyl-4-carboxamide (7h) was more potent than 7a at inhibiting recombinant rat NAAA activity (7a, IC(50) = 420 nM; 7h, IC(50) = 115 nM) in vitro and at reducing carrageenan-induced leukocyte infiltration in vivo.
Collapse
Affiliation(s)
- Carlos Solorzano
- Department of Pharmacology, University of California, Irvine, 360 MSRII, Irvine CA 92697-4625, USA
| | - Francesca Antonietti
- Dipartimento di Scienze del Farmaco e della Salute, Università degli Studi di Urbino “Carlo Bo”, Piazza del Rinascimento 6, I-61029 Urbino, Italy
| | - Andrea Duranti
- Dipartimento di Scienze del Farmaco e della Salute, Università degli Studi di Urbino “Carlo Bo”, Piazza del Rinascimento 6, I-61029 Urbino, Italy
| | - Andrea Tontini
- Dipartimento di Scienze del Farmaco e della Salute, Università degli Studi di Urbino “Carlo Bo”, Piazza del Rinascimento 6, I-61029 Urbino, Italy
| | - Silvia Rivara
- Dipartimento Farmaceutico, Università degli Studi di Parma, viale G. P. Usberti 27/A I-43124 Parma, Italy
| | - Alessio Lodola
- Dipartimento Farmaceutico, Università degli Studi di Parma, viale G. P. Usberti 27/A I-43124 Parma, Italy
| | - Federica Vacondio
- Dipartimento Farmaceutico, Università degli Studi di Parma, viale G. P. Usberti 27/A I-43124 Parma, Italy
| | - Giorgio Tarzia
- Dipartimento di Scienze del Farmaco e della Salute, Università degli Studi di Urbino “Carlo Bo”, Piazza del Rinascimento 6, I-61029 Urbino, Italy
| | - Daniele Piomelli
- Department of Pharmacology, University of California, Irvine, 360 MSRII, Irvine CA 92697-4625, USA
- Department of Drug Discovery and Development, Italian Institute of Technology, via Morego 30, I-16163 Genova, Italy
| | - Marco Mor
- Dipartimento Farmaceutico, Università degli Studi di Parma, viale G. P. Usberti 27/A I-43124 Parma, Italy
| |
Collapse
|
5
|
Lowe C, Vederas JC. NATURALLY OCCURRING β-LACTONES: OCCURRENCE, SYNTHESES AND PROPERTIES. A REVIEW. ORG PREP PROCED INT 2009. [DOI: 10.1080/00304949509458466] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
6
|
Mori T, Higashibayashi S, Goto T, Kohno M, Satouchi Y, Shinko K, Suzuki K, Suzuki S, Tohmiya H, Hashimoto K, Nakata M. Total synthesis of siomycin A: construction of synthetic segments. Chem Asian J 2008; 3:984-1012. [PMID: 18464237 DOI: 10.1002/asia.200800032] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The five practical segments for the total synthesis of siomycin A, that is, the dehydropiperidine segment A (5), the pentapeptide segment B (3), the dihydroquinoline segment C (6), and the beta-phenylselenoalanine dipeptide segments D (7) and E (4), were synthesized. Segment A (5) was constructed by the coupling of the azomethine ylide and the chiral sulfinimine, followed by the stereoselective reduction of the six-membered imine function. Segment B (3) was synthesized by the phenylselenylation of the beta-lactone, stereoselective vinylzinc addition to the chiral sulfinimine, and oxazoline-thioamide conversion. Segment C (6) was prepared by the one-pot olefination of the tetrahydroquinoline N-oxide using triflic anhydride and triethylamine, stereoselective reduction of the methyl ketone function, and regioselective Yb(OTf)(3)-catalyzed epoxide opening by the amino group. Segments D (7) and E (4) were synthesized by coupling of the properly protected beta-phenylselenoalanines.
Collapse
Affiliation(s)
- Tomonori Mori
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Valls N, Borregán M, Bonjoch J. Synthesis of β-chloro α-amino acids: (2S,3R)- and (2S,3S)-3-chloroleucine. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.03.127] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
8
|
Higashibayashi S, Kohno M, Goto T, Suzuki K, Mori T, Hashimoto K, Nakata M. Synthetic studies on thiostrepton family of peptide antibiotics: synthesis of the pentapeptide segment containing dihydroxyisoleucine, thiazoline and dehydroamino acid. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.03.099] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
9
|
Kelleman A, Mattern RH, Pierschbacher MD, Goodman M. Incorporation of thioether building blocks into an αvβ3-specific RGD peptide: Synthesis and biological activity. Biopolymers 2003; 71:686-95. [PMID: 14991678 DOI: 10.1002/bip.10586] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
We report the design, synthesis, and binding affinities of a family of thioether analogues of the alpha(v)beta(3)-specific compound c[(Mpa)RGDD(tBuG)C]-NH(2). The synthesis of the thioether building blocks is scalable and produced the desired products in good yields. The linear peptides were synthesized on solid supports, followed by cyclization in solution. Our analogues demonstrate interesting binding data to the isolated receptors. In particular, the peptide c[NH-Arg-Gly-Asp-Asp-(tBuG)-Cys(S-CH(2)-CO)]NH(2) (1) exhibits differences in binding when compared to the parent compound and demonstrates potent affinity to the alpha(v)beta(3) and alpha(5)beta(1) receptors while having reduced binding to the alpha(IIb)beta(3) receptor. This result combined with the replacement of the disulfide with a thioether makes this compound interesting for further development.
Collapse
Affiliation(s)
- Audrey Kelleman
- Department of Chemistry and Biochemistry University of California San Diego, La Jolla, CA 92093-0343, USA
| | | | | | | |
Collapse
|
10
|
Abstract
It has been a major focus in our laboratories to prepare novel reagents and peptidomimetic structures for drug design. We have designed and prepared novel guanidinylation reagents that can be employed in solution or as solid phase reagents. We and others have utilized the reagent 3-(diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-one (DEPBT) for amide bond formation to couple sterically hindered structures. These couplings proceed with remarkably strong resistance to racemization. In the area of peptidomimetics, we have incorporated novel building blocks to create biologically active compounds. These building blocks include thioether and alkylamine bridges, beta-methylated, and beta,beta-dimethylated amino acid residues. These mimetic structures have been incorporated into specific target molecules such as opioids to obtain cyclic peptidomimetics with potent and selective biological activity.
Collapse
Affiliation(s)
- M Goodman
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0343, USA.
| | | | | |
Collapse
|
11
|
|
12
|
Synthesis of natural and non natural orthogonally protected lanthionines from N-tritylserine and allo-threonine derivatives. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0957-4166(97)00109-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
13
|
Sliedregt KM, Schouten A, Kroon J, Liskamp RM. Reaction of N-trityl amino acids with BOP: Efficient synthesis of t-butyl esters as well as N-trityl serine- and threonine-β-lactones. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)00805-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
14
|
Organoaluminum-promoted cycloaddition of trialkylsilylketene with aldehydes: A new, stereoselective approach to cis-2-oxetanones and 2(Z)-alkenoic acids. Tetrahedron 1995. [DOI: 10.1016/0040-4020(95)00142-u] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
15
|
Palomo C, Miranda JI, Cuevas C, Odriozola JM. Diastereoselective [2 + 2] cycloaddition of dichloroketene with α-oxyaldehydes and α-amino aldehydes. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/c39950001735] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
16
|
|
17
|
Baldwin JE, Spivey AC, Schofield CJ, Sweeney JB. Amino acid synthesis via ring opening of N-sulphonyl aziridine-2-carboxylate esters with organometallic reagents. Tetrahedron 1993. [DOI: 10.1016/s0040-4020(01)87968-0] [Citation(s) in RCA: 78] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
18
|
Bates RW, Fernandez-Moro R, Ley SV. The use of π-allyltricarbonyliron lactone complexes in the synthesis of the β-lactone esterase inhibitor (−)-valilactone. Tetrahedron 1991. [DOI: 10.1016/s0040-4020(01)80728-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
19
|
Rao MN, Holkar AG, Ayyangar NR. A novel transacylation method for the synthesis of α-N-acyl-β-lactones; application to (±)-diacetylobafluorin and (+)-SQ 26,517. ACTA ACUST UNITED AC 1991. [DOI: 10.1039/c39910001007] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|