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Jastaniah A, Gaisina IN, Knopp RC, Thatcher GRJ. Synthesis of α-Ketoamide-Based Stereoselective Calpain-1 Inhibitors as Neuroprotective Agents. ChemMedChem 2020; 15:2280-2285. [PMID: 32840034 DOI: 10.1002/cmdc.202000385] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/23/2020] [Indexed: 01/05/2023]
Abstract
Calpain inhibitors have been proposed as drug candidates for neurodegenerative disorders, with ABT-957 entering clinical trials for Alzheimer's disease and mild cognitive impairment. The structure of ABT-957 was very recently disclosed, and trials were terminated owing to inadequate CNS concentrations to obtain a pharmacodynamic effect. The multistep synthesis of an α-ketoamide peptidomimetic inhibitor series potentially including ABT-957 was optimized to yield diastereomerically pure compounds that are potent and selective for calpain-1 over papain and cathepsins B and K. As the final oxidation step, with its optimized synthesis protocol, does not alter the configuration of the substrate, the synthesis of the diastereomeric pair (R)-1-benzyl-N-((S)-4-((4-fluorobenzyl)amino)-3,4-dioxo-1-phenylbutan-2-yl)-5-oxopyrrolidine-2-carboxamide (1 c) and (R)-1-benzyl-N-((R)-4-((4-fluorobenzyl)amino)-3,4-dioxo-1-phenylbutan-2-yl)-5-oxopyrrolidine-2-carboxamide (1 g) was feasible. This allowed the exploration of stereoselective inhibition of calpain-1, with 1 c (IC50 =78 nM) being significantly more potent than 1 g. Moreover, inhibitor 1 c restored cognitive function in amnestic mice.
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Affiliation(s)
- Ammar Jastaniah
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, 833 S. Wood Street, Chicago, IL., 60612, USA
| | - Irina N Gaisina
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, 833 S. Wood Street, Chicago, IL., 60612, USA
| | - Rachel C Knopp
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, 833 S. Wood Street, Chicago, IL., 60612, USA
| | - Gregory R J Thatcher
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, 833 S. Wood Street, Chicago, IL., 60612, USA
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2
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Li G, D’Auria J, Kumar Katakam N, W. Seifert C. Efficient Synthesis of Methyl (S)-4-(1-Methylpyrrolidin-2-yl)-3-oxobutanoate as the Key Intermediate for Tropane Alkaloid Biosynthesis with Optically Active Form. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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3
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Pressnitz D, Fischereder E, Pletz J, Kofler C, Hammerer L, Hiebler K, Lechner H, Richter N, Eger E, Kroutil W. Asymmetric Synthesis of (
R
)‐1‐Alkyl‐Substituted Tetrahydro‐ß‐carbolines Catalyzed by Strictosidine Synthases. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803372] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Desiree Pressnitz
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28 8010 Graz Austria
| | - Eva‐Maria Fischereder
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28 8010 Graz Austria
| | - Jakob Pletz
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28 8010 Graz Austria
| | - Christina Kofler
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28 8010 Graz Austria
| | - Lucas Hammerer
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28 8010 Graz Austria
- ACIB GmbH—Austrian Center of Industrial Biotechnology Petersgasse 14 8010 Graz Austria
| | - Katharina Hiebler
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28 8010 Graz Austria
| | - Horst Lechner
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28 8010 Graz Austria
| | - Nina Richter
- ACIB GmbH—Austrian Center of Industrial Biotechnology Petersgasse 14 8010 Graz Austria
| | - Elisabeth Eger
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28 8010 Graz Austria
| | - Wolfgang Kroutil
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed Graz Heinrichstrasse 28 8010 Graz Austria
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Pressnitz D, Fischereder E, Pletz J, Kofler C, Hammerer L, Hiebler K, Lechner H, Richter N, Eger E, Kroutil W. Asymmetric Synthesis of (R)-1-Alkyl-Substituted Tetrahydro-ß-carbolines Catalyzed by Strictosidine Synthases. Angew Chem Int Ed Engl 2018; 57:10683-10687. [PMID: 29852524 PMCID: PMC6146909 DOI: 10.1002/anie.201803372] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 05/15/2018] [Indexed: 01/18/2023]
Abstract
Stereoselective methods for the synthesis of tetrahydro-ß-carbolines are of significant interest due to the broad spectrum of biological activity of the target molecules. In the plant kingdom, strictosidine synthases catalyze the C-C coupling through a Pictet-Spengler reaction of tryptamine and secologanin to exclusively form the (S)-configured tetrahydro-ß-carboline (S)-strictosidine. Investigating the biocatalytic Pictet-Spengler reaction of tryptamine with small-molecular-weight aliphatic aldehydes revealed that the strictosidine synthases give unexpectedly access to the (R)-configured product. Developing an efficient expression method for the enzyme allowed the preparative transformation of various aldehydes, giving the products with up to >98 % ee. With this tool in hand, a chemoenzymatic two-step synthesis of (R)-harmicine was achieved, giving (R)-harmicine in 67 % overall yield in optically pure form.
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Affiliation(s)
- Desiree Pressnitz
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed GrazHeinrichstrasse 288010GrazAustria
| | - Eva‐Maria Fischereder
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed GrazHeinrichstrasse 288010GrazAustria
| | - Jakob Pletz
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed GrazHeinrichstrasse 288010GrazAustria
| | - Christina Kofler
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed GrazHeinrichstrasse 288010GrazAustria
| | - Lucas Hammerer
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed GrazHeinrichstrasse 288010GrazAustria
- ACIB GmbH—Austrian Center of Industrial BiotechnologyPetersgasse 148010GrazAustria
| | - Katharina Hiebler
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed GrazHeinrichstrasse 288010GrazAustria
| | - Horst Lechner
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed GrazHeinrichstrasse 288010GrazAustria
| | - Nina Richter
- ACIB GmbH—Austrian Center of Industrial BiotechnologyPetersgasse 148010GrazAustria
| | - Elisabeth Eger
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed GrazHeinrichstrasse 288010GrazAustria
| | - Wolfgang Kroutil
- Department of Chemistry, Organic und Bioorganic ChemistryUniversity of Graz, NAWI Graz, BioTechMed GrazHeinrichstrasse 288010GrazAustria
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5
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Mollica A, Stefanucci A, Costante R, Novellino E. Pyroglutamic Acid Derivatives: Building Blocks for Drug Discovery. HETEROCYCLES 2014. [DOI: 10.3987/rev-14-800] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Domínguez G, Pérez‐Castells J. Chemistry of β‐Carbolines as Synthetic Intermediates. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100931] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gema Domínguez
- Departamento de Química, Facultad de Farmacia, Universidad San Pablo‐CEU, Urb. Montepríncipe, 28668 Boadilla del Monte, Madrid, Spain, Fax: +34‐913‐510496
| | - Javier Pérez‐Castells
- Departamento de Química, Facultad de Farmacia, Universidad San Pablo‐CEU, Urb. Montepríncipe, 28668 Boadilla del Monte, Madrid, Spain, Fax: +34‐913‐510496
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Ahamed M, Todd MH. Catalytic Asymmetric Additions of Carbon‐Centered Nucleophiles to Nitrogen‐Containing Aromatic Heterocycles. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000877] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Muneer Ahamed
- School of Chemistry, The University of Sydney, NSW 2006, Australia, Fax: +61‐2‐9351‐2180
| | - Matthew. H. Todd
- School of Chemistry, The University of Sydney, NSW 2006, Australia, Fax: +61‐2‐9351‐2180
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Itoh T, Ishikawa H, Tanaka A, Miyazaki M, Kanemitsu T, Nagata K. Formal Syntheses of Dihydrocorynantheine and Isorhynchophylline via Proline Catalyzed Mannich-Michael Reaction. HETEROCYCLES 2010. [DOI: 10.3987/com-09-11828] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Michael addition reactions between various nucleophilic glycine equivalents and (S,E)-1-enoyl-5-oxo-N-phenylpyrrolidine-2-carboxamide, an optimal type of chiral Michael acceptor in the asymmetric synthesis of β-phenyl pyroglutamic acid and related compounds. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.10.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Itoh T, Yokoya M, Miyauchi K, Nagata K, Ohsawa A. Total synthesis of ent-dihydrocorynantheol by using a proline-catalyzed asymmetric addition reaction. Org Lett 2007; 8:1533-5. [PMID: 16597103 DOI: 10.1021/ol0530575] [Citation(s) in RCA: 117] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] 9-Tosyl-3,4-dihydro-beta-carboline reacted with 3-ethyl-3-buten-2-one in the presence of (S)-proline to give (3R,12bR)-3-ethyl-12-tosyl-3,4,6,7,8,9,10,11,12,12b-decahydro-1H-indolo[2,3-a]quinolizin-2-one in complete enantio- and diastereoselectivity. The compound thus obtained was readily transformed to ent-dihydrocorynantheol in three steps.
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Affiliation(s)
- Takashi Itoh
- School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan.
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Castellanos L, Duque C, Zea S, Espada A, Rodríguez J, Jiménez C. Isolation and Synthesis of (−)-(5S)-2-Imino-1-methylpyrrolidine-5- carboxylic Acid from Cliona tenuis: Structure Revision of Pyrostatins. Org Lett 2006; 8:4967-70. [PMID: 17020348 DOI: 10.1021/ol062087k] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] (-)-(5S)-2-Imino-1-methylpyrrolidine-5-carboxylic acid (1), previously reported as the N-acetyl-beta-d-glucosaminidase inhibitor pyrostatin B, has been isolated from the organic extracts of the burrowing sponge Cliona tenuis. The structure of 1, including its absolute stereochemistry, was characterized from its spectral data and chemical transformations and confirmed by total synthesis. The synthesis of 1 reveals that the structure of pyrostatin B has been incorrectly assigned. Comparison of NMR spectral data strongly suggests that pyrostatins A and B are identical to 5-hydroxyectoine and ectoine, respectively.
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Affiliation(s)
- Leonardo Castellanos
- Departamento de Química, Universidad Nacional de Colombia, AA 14490 Bogota, Colombia
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Golantsov NE, Karchava AV, Starikova ZA, Dolgushin FM, Yurovskaya MA. Chirally N-Substituted Indole-2-carbaldehydes. Preparation and Use in Asymmetric Synthesis. Chem Heterocycl Compd (N Y) 2005. [DOI: 10.1007/s10593-005-0315-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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14
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Cai C, Yamada T, Tiwari R, Hruby VJ, Soloshonok VA. Application of (S)- and (R)-methyl pyroglutamates as inexpensive, yet highly efficient chiral auxiliaries in the asymmetric Michael addition reactions. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.07.096] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Ohsawa A, Itoh T, Miyazaki M, Nagata K, Nakamura S. Syntheses of 1,2,3,4,6,7,12,12b-Octahydroindolo[2,3-a]quinolizine and Harmicine Using a Chiral 1-Allyl-1,2,3,4-tetrahydro-b-carboline as the Starting Material. HETEROCYCLES 2004. [DOI: 10.3987/com-03-9968] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Alcaide B, Almendros P, Alonso JM. Novel ruthenium-catalyzed cleavage of allyl protecting group in lactams. Tetrahedron Lett 2003. [DOI: 10.1016/j.tetlet.2003.09.165] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Itoh T, Yokoya M, Miyauchi K, Nagata K, Ohsawa A. Proline-Catalyzed Asymmetric Addition Reaction of 9-Tosyl-3,4-dihydro-β-carboline with Ketones. Org Lett 2003; 5:4301-4. [PMID: 14601985 DOI: 10.1021/ol030103x] [Citation(s) in RCA: 145] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] 9-Tosyl-3,4-dihydro-beta-carboline (1) reacted with a ketone in the presence of (S)-proline as a catalyst to give the corresponding addition product in good yield and high enantioselectivity. In the process, a small amount of water was found to affect the stereoselectivity of the products. The system was applied to reaction of compound 1 and 3-buten-2-one to give 3,4,6,7,12,12b-hexahydro-1H-indolo[2,3-a]quinolizin-2-one, which is a versatile precursor for the synthesis of some indole alkaloids.
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Affiliation(s)
- Takashi Itoh
- School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
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