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Banerjee A, Chatterjee I, Panda G. Total synthesis of selected tyrosine‐derived alkaloids: A comparative analysis of tyrosine‐based chiral pool vs other synthetic approaches. ChemistrySelect 2022. [DOI: 10.1002/slct.202202750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Arpita Banerjee
- Indranil Chatterjee and Gautam Panda Medicinal and Process Chemistry Division CSIR-Central Drug Research Institute Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 India
| | - Indranil Chatterjee
- Indranil Chatterjee and Gautam Panda Medicinal and Process Chemistry Division CSIR-Central Drug Research Institute Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 India
| | - Gautam Panda
- Indranil Chatterjee and Gautam Panda Medicinal and Process Chemistry Division CSIR-Central Drug Research Institute Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research New Delhi 110001 India
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2
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Liang D, Li L, Lynch C, Mackowiak B, Hedrich WD, Ai Y, Yin Y, Heyward S, Xia M, Wang H, Xue F. Human constitutive androstane receptor agonist DL5016: A novel sensitizer for cyclophosphamide-based chemotherapies. Eur J Med Chem 2019; 179:84-99. [PMID: 31247375 DOI: 10.1016/j.ejmech.2019.06.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 06/10/2019] [Accepted: 06/11/2019] [Indexed: 12/29/2022]
Abstract
The DNA alkylating prodrug cyclophosphamide (CPA), alone or in combination with other agents, is one of the most commonly used anti-cancer agents. As a prodrug, CPA is activated by cytochrome P450 2B6 (CYP2B6), which is transcriptionally regulated by the human constitutive androstane receptor (hCAR). Therefore, hCAR agonists represent novel sensitizers for CPA-based therapies. Among known hCAR agonists, compound 6-(4-chlorophenyl)imidazo-[2,1-b]thiazole-5-carbaldehyde-O-(3,4-dichlorobenzyl)oxime (CITCO) is the most potent and broadly utilized in biological studies. Through structural modification of CITCO, we have developed a novel compound DL5016 (32), which has an EC50 value of 0.66 μM and EMAX value of 4.9 when activating hCAR. DL5016 robustly induced the expression of hCAR target gene CYP2B6, at both the mRNA and protein levels, and caused translocation of hCAR from the cytoplasm to the nucleus in human primary hepatocytes. The effects of DL5016 were highlighted by dramatically enhancing the efficacy of CPA-based cytotoxicity to non-Hodgkin lymphoma cells.
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Affiliation(s)
- Dongdong Liang
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, 21201, United States
| | - Linhao Li
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, 21201, United States
| | - Caitlin Lynch
- 9800 Medical Center Drive, National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, 20892, United States
| | - Bryan Mackowiak
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, 21201, United States
| | - William D Hedrich
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, 21201, United States
| | - Yong Ai
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, 21201, United States
| | - Yue Yin
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, 21201, United States
| | - Scott Heyward
- BioIVT, 1450 S Rolling Rd, Halethorpe, MD, 21227, United States
| | - Menghang Xia
- 9800 Medical Center Drive, National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, 20892, United States
| | - Hongbing Wang
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, 21201, United States.
| | - Fengtian Xue
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, 21201, United States.
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Fanter L, Müller C, Schepmann D, Bracher F, Wünsch B. Chiral-pool synthesis of 1,2,4-trisubstituted 1,4-diazepanes as novel σ1 receptor ligands. Bioorg Med Chem 2017; 25:4778-4799. [DOI: 10.1016/j.bmc.2017.07.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 07/06/2017] [Accepted: 07/13/2017] [Indexed: 01/11/2023]
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Zhao Z, Wu Y, Li Y. On the Synthesis of Stereocalpin A: Partial Retraction/Correction of Previous Results and Rationalization of the Hidden Difficulties. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhiwei Zhao
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials and Ministry-of-Education Key Laboratory for Synthesis and Application of Organic Functional Molecules; Hubei University; Wuhan Hubei 430062 China
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; Shanghai 200032 China
| | - Yikang Wu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; Shanghai 200032 China
| | - Yan Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials and Ministry-of-Education Key Laboratory for Synthesis and Application of Organic Functional Molecules; Hubei University; Wuhan Hubei 430062 China
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α-Amino acids with electrically charged and polar uncharged side chains as chiral synthon: Application to the synthesis of bioactive alkaloids (1996-Dec, 2013). Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.02.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Pettersson M, Quant M, Min J, Iconaru L, Kriwacki RW, Waddell MB, Guy RK, Luthman K, Grøtli M. Design, Synthesis and Evaluation of 2,5-Diketopiperazines as Inhibitors of the MDM2-p53 Interaction. PLoS One 2015; 10:e0137867. [PMID: 26427060 PMCID: PMC4591261 DOI: 10.1371/journal.pone.0137867] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 08/23/2015] [Indexed: 11/19/2022] Open
Abstract
The transcription factor p53 is the main tumour suppressor in cells and many cancer types have p53 mutations resulting in a loss of its function. In tumours that retain wild-type p53 function, p53 activity is down-regulated by MDM2 (human murine double minute 2) via a direct protein-protein interaction. We have designed and synthesised two series of 2,5-diketopiperazines as inhibitors of the MDM2-p53 interaction. The first set was designed to directly mimic the α-helical region of the p53 peptide, containing key residues in the i, i+4 and i+7 positions of a natural α-helix. Conformational analysis indicated that 1,3,6-trisubstituted 2,5-diketopiperazines were able to place substituents in the same spatial orientation as an α-helix template. The key step of the synthesis involved the cyclisation of substituted dipeptides. The other set of tetrasubstituted 2,5-diketopiperazines were designed based on structure-based docking studies and the Ugi multicomponent reaction was used for the synthesis. This latter set comprised the most potent inhibitors which displayed micromolar IC50-values in a biochemical fluorescence polarisation assay.
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Affiliation(s)
- Mariell Pettersson
- Department of Chemistry and Molecular Biology, University of Gothenburg, 412 96, Gothenburg, Sweden
| | - Maria Quant
- Department of Chemistry and Molecular Biology, University of Gothenburg, 412 96, Gothenburg, Sweden
| | - Jaeki Min
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, Tennessee, 38105, United States of America
| | - Luigi Iconaru
- Department of Structural Biology, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, Tennessee, 38105, United States of America
| | - Richard W. Kriwacki
- Department of Structural Biology, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, Tennessee, 38105, United States of America
| | - M. Brett Waddell
- Molecular Interaction Analysis Shared Resource, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, Tennessee, 38105, United States of America
| | - R. Kiplin Guy
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, Tennessee, 38105, United States of America
| | - Kristina Luthman
- Department of Chemistry and Molecular Biology, University of Gothenburg, 412 96, Gothenburg, Sweden
| | - Morten Grøtli
- Department of Chemistry and Molecular Biology, University of Gothenburg, 412 96, Gothenburg, Sweden
- * E-mail:
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Gao X, Liu Y, Kwong S, Xu Z, Ye T. Total synthesis and stereochemical reassignment of bisebromoamide. Org Lett 2010; 12:3018-21. [PMID: 20527927 DOI: 10.1021/ol101021v] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A revised configurational assignment for the thiazoline moiety of the marine peptide bisebromoamide is proposed and validated by total synthesis.
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Affiliation(s)
- Xuguang Gao
- Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, University Town of Shenzhen, Xili, Nanshan District, Shenzhen, China
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Wenge B, Bönisch H. Interference of the noradrenergic neurotoxin DSP4 with neuronal and nonneuronal monoamine transporters. Naunyn Schmiedebergs Arch Pharmacol 2009; 380:523-9. [PMID: 19838680 DOI: 10.1007/s00210-009-0459-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2009] [Accepted: 09/18/2009] [Indexed: 01/11/2023]
Abstract
The haloalkylamine DSP4 (N[-2-chloroethyl]-N-ethyl-2-bromobenzylamine) is a noradrenergic neurotoxin, which is used for the chemical denervation of noradrenergic neurons, and it has been proposed to be a selective substrate for the neuronal, Na(+)- and Cl(-)-dependent noradrenaline transporter (NAT). In the present study, we investigated whether DSP4 not only interacts with the human NAT (hNAT) but also with other neuronal monoamine transporters such as the transporters for dopamine (hDAT) and serotonin (hSERT) or with nonneuronal (Na(+)-independent) monoamine transporters also known as organic cation transporters (OCTs), such as hOCT(1), hOCT(2), and hOCT(3). Using human embryonic kidney HEK293 cells heterologously expressing the corresponding transporter, we show that DSP4 irreversibly inhibits the hNAT, hDAT, hSERT, and hOCT(3). However, this inhibition includes a reversible component at the hDAT, hSERT, and hOCT(3) but not at the hNAT. The inhibitory potency of DSP4 at the neuronal transporters was highest at the hNAT (IC(50) about 5 microM), and it was about five and 40 times lower at the hSERT and hDAT, respectively. DSP4 inhibited all three hOCTs with high potency (IC(50) about 1 microM) but in a completely reversible manner at hOCT(1) and hOCT(2). Cytotoxicity by 24-h exposure of hNAT- or hOCT-expressing cells to low DSP4 concentrations (<10 microM) could be observed only in hNAT-expressing cells. Thus, DSP4's high-affinity uptake through the NAT together with its completely irreversible mode of interaction with the NAT may contribute to its selectivity as noradrenergic neurotoxin.
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Affiliation(s)
- Birger Wenge
- Institute of Pharmacology and Toxicology, University of Bonn, Reuterstrasse 2 B, Bonn, Germany
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Wu HF, Lin WB, Xia LZ, Luo YG, Chen XZ, Li GY, Zhang GL, Pan XF. ‘N-Stereogenic Quaternary Ammonium Salts’ from L-Amino Acids: Synthesis, Separation, and Absolute Configuration. Helv Chim Acta 2009. [DOI: 10.1002/hlca.200800326] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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10
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Stodulski M, Mlynarski J. Synthesis of N-alkyl-N-methyl amino acids. Scope and limitations of base-induced N-alkylation of Cbz-amino acids. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.03.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Eberhardt L, Armspach D, Matt D, Toupet L, Oswald B. Synthesis of Chiral, Monodentate Aminophosphane and Phosphoramidite Ligands Derived from Amino Acid Esters: Application in Rh‐Catalysed Asymmetric Olefin Hydrogenation Reactions. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200700474] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Luc Eberhardt
- Laboratoire de Chimie Inorganique Moléculaire, Institut de Chimie UMR 7177 CNRS, 1 rue Blaise Pascal, 67008 Strasbourg Cedex, France
| | - Dominique Armspach
- Laboratoire de Chimie Inorganique Moléculaire, Institut de Chimie UMR 7177 CNRS, 1 rue Blaise Pascal, 67008 Strasbourg Cedex, France
| | - Dominique Matt
- Laboratoire de Chimie Inorganique Moléculaire, Institut de Chimie UMR 7177 CNRS, 1 rue Blaise Pascal, 67008 Strasbourg Cedex, France
| | - Loic Toupet
- Groupe Matière Condensée et Matériaux, UMR 6626, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Benoît Oswald
- Genzyme Pharmaceuticals, Eichenweg 1, 40410 Liestal, Switzerland
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Phoon L, Burton NA. Assessment of a mechanism for reactive inhibition of carboxypeptidase A with QM/MM methods. J Mol Graph Model 2006; 24:94-101. [PMID: 16144767 DOI: 10.1016/j.jmgm.2005.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2005] [Indexed: 10/25/2022]
Abstract
The mechanism for inhibition of carboxypeptidase A (CPA) by the two enantiomers of a reactive inhibitor, N-(2-chloroethyl)-N-methylphenylalanine, has been investigated using computational methods. Quantum mechanical and molecular mechanical (QM/MM) methods have been employed to find likely enzyme binding conformations by comparison with the observed rates of inactivation of the enzyme. The study has shown that the enzyme active site appears to be flexible enough to allow the nucleophilic deactivation reactions of both the (R) and (S) forms of a model of the inhibitor to be catalysed by the Zn(II) cofactor of CPA.
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Affiliation(s)
- Lily Phoon
- School of Chemistry, University of Manchester, Manchester M13 9PL, UK
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Fleming FF, Gudipati V, Steward OW. Omega-halonitriles: domino cyclizations to oxa- and carbocyclic nitriles. J Org Chem 2003; 68:3943-6. [PMID: 12737576 DOI: 10.1021/jo026874g] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
t-BuOK-induced deprotonation of omega-haloalkylnitriles generates remarkably stable potassiated nitriles. In situ deprotonation and alkylation of omega-chloroalkylnitriles with aldehyde electrophiles trigger sequential nucleophilic-electrophilic alkylations generating substituted tetrahydrofuranyl and tetrahydropyranyl nitriles. Redirecting the cyclization manifold with 5-iodopentanenitrile and a ketone causes a complementary electrophilic-nucleophilic cyclization to the corresponding carbonitrile. Collectively these cyclizations provide rapid assembly of five- and six-membered oxa- and carbocyclic nitriles demonstrating the utility of omega-halonitriles in domino alkylations.
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Affiliation(s)
- Fraser F Fleming
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, Pennsylvania 15282-1530, USA.
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