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Bogolubsky AV, Moroz YS, Savych O, Pipko S, Konovets A, Platonov MO, Vasylchenko OV, Hurmach VV, Grygorenko OO. An Old Story in the Parallel Synthesis World: An Approach to Hydantoin Libraries. ACS COMBINATORIAL SCIENCE 2018; 20:35-43. [PMID: 29227678 DOI: 10.1021/acscombsci.7b00163] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An approach to the parallel synthesis of hydantoin libraries by reaction of in situ generated 2,2,2-trifluoroethylcarbamates and α-amino esters was developed. To demonstrate utility of the method, a library of 1158 hydantoins designed according to the lead-likeness criteria (MW 200-350, cLogP 1-3) was prepared. The success rate of the method was analyzed as a function of physicochemical parameters of the products, and it was found that the method can be considered as a tool for lead-oriented synthesis. A hydantoin-bearing submicromolar primary hit acting as an Aurora kinase A inhibitor was discovered with a combination of rational design, parallel synthesis using the procedures developed, in silico and in vitro screenings.
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Affiliation(s)
| | - Yurii S. Moroz
- Enamine Ltd., 78 Chervonotkatska
Street, Kyiv 02094, Ukraine
- National Taras Shevchenko University of Kyiv, 60 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Olena Savych
- Enamine Ltd., 78 Chervonotkatska
Street, Kyiv 02094, Ukraine
- National Taras Shevchenko University of Kyiv, 60 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Sergey Pipko
- Enamine Ltd., 78 Chervonotkatska
Street, Kyiv 02094, Ukraine
- National Taras Shevchenko University of Kyiv, 60 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Angelika Konovets
- Enamine Ltd., 78 Chervonotkatska
Street, Kyiv 02094, Ukraine
- National Taras Shevchenko University of Kyiv, 60 Volodymyrska Street, Kyiv 01601, Ukraine
| | | | | | - Vasyl V. Hurmach
- Enamine Ltd., 78 Chervonotkatska
Street, Kyiv 02094, Ukraine
- National Taras Shevchenko University of Kyiv, 60 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Oleksandr O. Grygorenko
- Enamine Ltd., 78 Chervonotkatska
Street, Kyiv 02094, Ukraine
- National Taras Shevchenko University of Kyiv, 60 Volodymyrska Street, Kyiv 01601, Ukraine
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2
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Tang J, Zhang J, Guan F, Qiu J, Fang Y, Yu L, Li J, Yang F, Zhang X, Li J. Design, Synthesis, in vitro Antiproliferative Activity Evaluation of 2-Acylaminothiopene-3-carboxamide Derivatives. HETEROCYCLES 2016. [DOI: 10.3987/com-16-13558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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3
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Wojciechowski F, Suchy M, Li AX, Azab HA, Bartha R, Hudson RHE. A Robust and Convergent Synthesis of Dipeptide−DOTAM Conjugates as Chelators for Lanthanide Ions: New PARACEST MRI Agents. Bioconjug Chem 2007; 18:1625-36. [PMID: 17711349 DOI: 10.1021/bc0701287] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A generally applicable synthetic approach to dipeptide-DOTAM conjugates has been developed which is based on the peralkylation of 1,4,7,10-tetraazacyclododecane (cyclen) with protected N-iodoacetyl dipeptides. Standardized procedures were used for the alkylation, metalation, and purification of the resultant lanthanide complexes. Using this approach, we have been able to rapidly and reliably prepare and screen five different ligands each with up to six lanthanide ions. This preliminary investigation has identified several paramagnetic compounds with strong chemical exchange saturation transfer (PARACEST) properties in water at physiological temperature and pH. Extension of the synthetic approach to a wide variety of amino acids is possible.
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Affiliation(s)
- Filip Wojciechowski
- Department of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7
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4
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Balboni G, Guerrini R, Salvadori S, Bianchi C, Rizzi D, Bryant SD, Lazarus LH. Evaluation of the Dmt-Tic pharmacophore: conversion of a potent delta-opioid receptor antagonist into a potent delta agonist and ligands with mixed properties. J Med Chem 2002; 45:713-20. [PMID: 11806723 DOI: 10.1021/jm010449i] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Analogues of the 2',6'-dimethyl-L-tyrosine (Dmt)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (Tic) pharmacophore were prepared to test the hypothesis that a "spacer" and a third aromatic center in opioid peptides are required to convert a delta-antagonist into ligands with delta-agonist or with mixed delta-antagonist/mu-agonist properties. Potent delta-agonists and bifunctional compounds with high delta- and mu-opioid receptor affinities were obtained by varying the spacer length [none, NH-CH(2), NH-CH(2)-CH(2), Gly-NH-CH(2)] and C-terminal aromatic nucleus [1H-benzimidazole-2-yl, phenyl (Ph) and benzyl groups]. C-terminal modification primarily affected mu-opioid receptor affinities, which increased maximally 1700-fold relative to the prototype delta-antagonist H-Dmt-Tic-NH(2) and differentially modified bioactivity. In the absence of a spacer (1), the analogue exhibited dual delta-agonism (pEC(50), 7.28) and delta-antagonism (pA(2), 7.90). H-Dmt-Tic-NH-CH(2)-1H-benzimidazole-2-yl (Bid) (2) became a highly potent delta-agonist (pEC(50), 9.90), slightly greater than deltorphin C (pEC(50), 9.56), with mu-agonism (pE(50), 7.57), while H-Dmt-Tic-Gly-NH-CH(2)-Bid (4) retained potent delta-antagonism (pA(2), 9.0) but with an order of magnitude less mu-agonism. Similarly, H-Dmt-Tic-Gly-NH-Ph (5) had nearly equivalent high delta-agonism (pEC(50), 8.52) and mu-agonism (pEC(50), 8.59), while H-Dmt-Tic-Gly-NH-CH(2)-Ph (6) whose spacer was longer by a single methylene group exhibited potent delta-antagonism (pA(2), 9.25) and very high mu-agonism (pEC(50), 8.57). These data confirm that the distance between the Dmt-Tic pharmacophore and a third aromatic nucleus is an important criterion in converting Dmt-Tic from a highly potent delta-antagonist into a potent delta-agonist or into ligands with mixed delta- and mu-opioid properties.
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Affiliation(s)
- Gianfranco Balboni
- Department of Toxicology, University of Cagliary, I09126 Cagliary, Italy
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5
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Vogel P, Cossy J, Plumet J, Arjona O. Derivatives of 7-oxabicyclo[2.2.1]heptane in nature and as useful synthetic intermediates. Tetrahedron 1999. [DOI: 10.1016/s0040-4020(99)00845-5] [Citation(s) in RCA: 101] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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6
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Marusawa H, Setoi H, Kuroda A, Sawada A, Seki J, Motoyama Y, Tanaka H. Synthesis and biological activity of 4-methyl-3,5-dioxane derivatives as thromboxane A2 receptor antagonists. Bioorg Med Chem 1999; 7:2635-45. [PMID: 10632075 DOI: 10.1016/s0968-0896(99)00204-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The synthesis and biological activity of novel 4-methyl-3,5-dioxane analogues are described. All compounds were produced through modification of the substituent formally corresponding to the omega-octenol side chain of thromboxane A2 (TXA2), in reference to the structure of SQ29548. Several compounds were found to be potent TXA2 receptor antagonists. Compound 8b was the most effective inhibitor of 9,11-epoxymethano PGH2 (U-46619)-induced human platelet aggregation (IC50 = 7.4 nM).
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Affiliation(s)
- H Marusawa
- Exploratory Research Laboratories, Fujisawa Pharmaceutical Co., Ltd., Ibaraki, Japan
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7
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Halmos T, Turek JW, Le Breton GC, Antonakis K. Synthesis and biological characterization of sqbazide, a novel biotinylated photoaffinity probe for the study of the human platelet thromboxane A2 receptor. Bioorg Med Chem Lett 1999; 9:2963-8. [PMID: 10571156 DOI: 10.1016/s0960-894x(99)00511-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
SQBAzide, a biotinylated, azido derivative of the TXA2 receptor antagonist, SQ31,491, was synthesized and characterized. The compound specifically inhibited human platelet aggregation mediated by TXA2 receptor activation and irreversibly labeled platelet TXA2 receptors upon exposure to ultraviolet light. This probe should prove to be of significant value for the study of the receptor-ligand binding domain.
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Affiliation(s)
- T Halmos
- Vectorologie Moléculaire et Cellulaire, CNRS-UMR 133, Ecole Nationale Supérieure de Chimie de Paris, France
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8
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Lacan F, Varache-Lembège M, Vercauteren J, Léger JM, Masereel B, Dogné JM, Nuhrich A. Synthesis, structural characterization and thromboxane A2 receptor antagonistic activity of 3-substituted 2-[(arylsulfonyl)imino]-2,3-dihydrothiazolyl derivatives. Eur J Med Chem 1999. [DOI: 10.1016/s0223-5234(99)80082-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Enzymatic esterification of bicyclic meso-diols derived from 1,4-bis(hydroxymethyl)furan. An enantioselective Diels–Alder reaction equivalent. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s0957-4166(98)00314-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Komiotis D, Wencel-Drake JD, Dieter JP, Lim CT, Le Breton GC. Labeling of human platelet plasma membrane thromboxane A2/prostaglandin H2 receptors using SQB, a novel biotinylated receptor probe. Biochem Pharmacol 1996; 52:763-70. [PMID: 8765474 DOI: 10.1016/0006-2952(96)00359-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
This study reports the synthesis, biological evaluation, and application of a new biotinylated derivative 1-[[1S-[1 alpha, 2 alpha (Z),3 alpha, 4 alpha]]-7-[3-[[[[(1-oxocyclohexylpropyl)amino]acetyl]amino] methyl]-7-oxabicyclo [2.2.1]hept-2-yl]-5-heptenoyl]-2-[hexahydro-2'-oxo-1H-thieno[3',4' d] imidazole-4'-pentanoyl]hydrazine (SQB) of the thromboxane A2/prostaglandin H2 (TXA2/PGH2) receptor antagonist [1S-[1 alpha,2 alpha(Z),3 alpha,4 alpha]]-7-[3-[[[[(1-oxocyclohexylpropyl)amino]acetyl] amino]methyl]-7-oxabicyclo[2.2.1]hept-2-yl]-5-heptenoic acid (SQ31,491). SQB was synthesized by reacting SQ31,491 with biotin hydrazide, and the product was purified by flash chromatography. It was found that SQB specifically inhibited platelet aggregation in response to U46619 with an IC50 of 275 nM. On the other hand, SQB did not inhibit adenosine diphosphate or A23187-induced aggregation. Competition binding studies revealed that SQB produced a concentration-dependent inhibition of [3H]-[1S-[1 alpha, 2 beta (5Z),3 beta, 4 alpha]]-7-[3-[[2[(phenylamino) carbonyl]hydrazino]methyl]-7-oxabicyclo[2.2.1]hept-2-yl]-5-heptenoic acid ([3H]SQ29,548) specific binding in 3-[(3-cholamidopropyl)dimethylammonio]-1-propane-sulfonate (CHAPS)-solubilized platelet membranes, with a Ki of 220 nM. The shape of the SQB inhibition binding curve was indistinguishable from that produced by the TXA2/PGH2 receptor antagonist BM13.177. Finally, incubation of gel-filtered platelets or platelet-rich plasma with SQB and fluorescein isothiocyanate (FITC)-avidin demonstrated fluorescent labeling of platelet plasma membrane TXA2/PGH2 receptors. Furthermore, this SQB-FITC fluorescent labeling was reduced significantly by co-incubation of the platelets with the TXA2/PGH2 antagonist SQ29,548. Based on the ability of SQB-FITC-avidin to label intact platelets, it can be concluded: (1) that a pool of platelet TXA2/PGH2 receptors resides in the plasma membrane; and (2) that the binding domains for these receptors are oriented at or near the external membrane surface. Collectively, these data demonstrate that SQB is a highly specific probe for TXA2/PGH2 receptors, which should be of significant value for receptor localization studies in platelets and other tissues.
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MESH Headings
- 15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid
- Biotin/chemistry
- Blood Platelets/chemistry
- Bridged Bicyclo Compounds, Heterocyclic
- Cell Membrane/chemistry
- Fatty Acids, Unsaturated
- Humans
- Hydrazines/chemistry
- Hydrazines/metabolism
- Hydrazines/pharmacology
- Microscopy, Fluorescence
- Molecular Probes
- Platelet Aggregation Inhibitors/pharmacology
- Prostaglandin Endoperoxides, Synthetic/pharmacology
- Radioligand Assay
- Receptors, Prostaglandin/antagonists & inhibitors
- Receptors, Prostaglandin/chemistry
- Receptors, Prostaglandin/metabolism
- Receptors, Thromboxane/antagonists & inhibitors
- Receptors, Thromboxane/chemistry
- Receptors, Thromboxane/metabolism
- Receptors, Thromboxane A2, Prostaglandin H2
- Spectrometry, Fluorescence
- Sulfonamides/metabolism
- Thromboxane A2/analogs & derivatives
- Thromboxane A2/pharmacology
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Affiliation(s)
- D Komiotis
- Department of Pharmacology, University of Illinois at Chicago 60612, USA
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11
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Joachim KD, Klar U, Pletsch A, Rehwinkel H, Skuballa W. Novel prostanoid thromboxane A2 agonists. PROSTAGLANDINS 1995; 50:57-63. [PMID: 8588073 DOI: 10.1016/0090-6980(95)00048-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The chemistry and biology of novel TXA2(TP)-receptor agonists based on the prostanoid skeleton is described and structure-activity-relationships are discussed. One compound,(5Z,13E), (9R,15R)-9-fluoro-15-hydroxy-16-phenoxy-17,18,19,20-tetranor- 5,13-prostadienoic acid (33), was identified which is 10 times more potent than the standard TP-receptor against U 46619.
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Affiliation(s)
- K D Joachim
- Research Laboratories of Schering AG, Berlin, Germany
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12
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Komiotis D, PananookoolnJ S, Zaw K, Dieter JP, Breton GCL, Venton DL. Synthesis of dl-cis- and (4R,5R)-trans-7-[2,2-dimethyl-4-(phenylsulfonyl)-aminomethyl-1,3-dioxolan-5-yl]-5(Z)-heptenoic acid analogues as platelet thromboxane A2 receptor antagonist. Eur J Med Chem 1995. [DOI: 10.1016/0223-5234(96)88240-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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13
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Role of sulfonamide moiety in non-prostanoid txa2 receptor antagonist kt2-962 : modifications of this moiety and the resulting activities. Bioorg Med Chem Lett 1993. [DOI: 10.1016/s0960-894x(00)80043-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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15
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Kim SO, Lim CT, Lam SC, Hall SE, Komiotis D, Venton DL, Le Breton GC. Purification of the human blood platelet thromboxane A2/prostaglandin H2 receptor protein. Biochem Pharmacol 1992; 43:313-22. [PMID: 1739420 DOI: 10.1016/0006-2952(92)90294-s] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The human platelet thromboxane A2/prostaglandin H2 receptor has been purified 6100-fold to apparent homogeneity by a three-step chromatographic procedure with an overall yield of 6%. A 6-fold purification of the receptor was first achieved by chromatography of 3-[(3-cholamidopropyl)dimethyl-ammonio]-1-propanesulfonate (CHAPS)-solubilized membrane proteins from human platelets on a diethylaminoethyl (DEAE)-Sepharose column. The DEAE eluate fractions containing receptor activity were then applied to a newly developed affinity column using the cyclohexyl derivative of SQ30,741 (SQ31,491) as the immobilized ligand. Elution of the receptor from the affinity column with BM13.177 yielded a further purification of 1700-fold. An additional 4-fold receptor purification from the affinity column eluate was achieved by HPLC using GPC 500 and GPC 100 columns connected in tandem. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis and silver staining of the HPLC eluate containing purified receptor revealed a single, distinct band with a molecular weight of 55,000. The receptor binding activity was detected with [3H]SQ29,548 using a newly developed binding assay which involved immobilization of the receptor on polyethyleneimine-treated glass fiber filters. The binding of [3H]SQ29,548 to the purified receptor was time dependent, saturable, reversible and highly specific. Unlabeled SQ29,548, BM13.505, and U46619 (but not thromboxane B2 or 6-keto prostaglandin F1 alpha) competed for [3H]SQ29,548 binding to the purified receptor in a concentration-dependent manner. Scatchard analysis of [3H]SQ29,548 binding to the purified receptor revealed the presence of a single class of high-affinity binding sites, with a Kd of 4 nM and a Bmax of 17 nmol/mg protein.
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Affiliation(s)
- S O Kim
- Department of Medicinal Chemistry, University of Illinois, Chicago 60612
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16
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Affiliation(s)
- S E Hall
- Bristol-Myers Squibb Pharmaceutical Research Institute, Princeton, New Jersey 08540
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