101
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Hanessian S, Larsson A, Fex T, Knecht W, Blomberg N. Design and synthesis of macrocyclic indoles targeting blood coagulation cascade Factor XIa. Bioorg Med Chem Lett 2010; 20:6925-8. [DOI: 10.1016/j.bmcl.2010.09.141] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2010] [Revised: 09/27/2010] [Accepted: 09/28/2010] [Indexed: 11/27/2022]
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102
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Auzzas L, Larsson A, Matera R, Baraldi A, Deschênes-Simard B, Giannini G, Cabri W, Battistuzzi G, Gallo G, Ciacci A, Vesci L, Pisano C, Hanessian S. Non-Natural Macrocyclic Inhibitors of Histone Deacetylases: Design, Synthesis, and Activity. J Med Chem 2010; 53:8387-99. [DOI: 10.1021/jm101092u] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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103
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Hanessian S, Pachamuthu K, Szychowski J, Giguère A, Swayze EE, Migawa MT, François B, Kondo J, Westhof E. Structure-based design, synthesis and A-site rRNA co-crystal complexes of novel amphiphilic aminoglycoside antibiotics with new binding modes: a synergistic hydrophobic effect against resistant bacteria. Bioorg Med Chem Lett 2010; 20:7097-101. [PMID: 20970332 DOI: 10.1016/j.bmcl.2010.09.084] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Accepted: 09/14/2010] [Indexed: 10/19/2022]
Abstract
Incorporation of an hydrophobic (phenethylamino)ethyl ether at C2″ of N1-(HABA)-3',4'-dideoxyparomomycin led to a novel analog with an excellent antibacterial profile against a host of resistant bacteria.
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104
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Hanessian S, Sahoo SP, Couture C, Wyss H. Novel Synthetic Approaches to Monocyclic β-Lactam Antibiotics. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bscb.19840930705] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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105
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Hanessian S, Maji DK, Govindan S, Matera R, Tintelnot-Blomley M. Substrate-controlled and organocatalytic asymmetric synthesis of carbocyclic amino acid dipeptide mimetics. J Org Chem 2010; 75:2861-76. [PMID: 20392053 DOI: 10.1021/jo100017t] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The asymmetric synthesis of a carbocyclic delta-amino acid representing the P(2)/P(3) subunit of a nonpeptidic truncated peptidomimetic molecule is described relying on two independent approaches.
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106
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Hanessian S, Focken T, Mi X, Oza R, Chen B, Ritson D, Beaudegnies R. Total Synthesis of (+)-Ambruticin S: Probing the Pharmacophoric Subunit. J Org Chem 2010; 75:5601-18. [DOI: 10.1021/jo100956v] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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107
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Hanessian S, Guesné S, Chénard E. Total synthesis of "aliskiren": the first Renin inhibitor in clinical practice for hypertension. Org Lett 2010; 12:1816-9. [PMID: 20235519 DOI: 10.1021/ol100427v] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a "macrocycle route" toward aliskiren, a drug presently marketed for the treatment of hypertension, using a highly stereocontrolled approach starting from a common "isopropyl chiron". Highlights of the synthesis include a challenging RCM reaction to produce a nine-membered unsaturated lactone, a highly stereoselective catalytic Du Bois aziridination, and a regio- and diastereoselective aziridine ring-opening to a vicinal amino alcohol.
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108
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109
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Hanessian S, Deschênes-Simard B, Simard D, Chenel C, Haak E, Bulat V. Proximity-assisted cycloaddition reactions of ω-azido cyanohydrin ethers: Synthesis of diversely functionalized bicyclic tetrazoles. PURE APPL CHEM 2010. [DOI: 10.1351/pac-con-09-08-08] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Aliphatic azidonitriles separated by three or four carbon atoms undergo facile cyclo-additions in the presence of BF3·OEt2 at room temperature or lower, to give bicyclic tetrazoles. 1-Azido-[2-aryl-1,3-dioxolanyl]-glycerols afford oxabicyclic tetrazoles with trimethylsilyl cyanide (TMSCN). Aspects of these facile proximity-induced 1,3-dipolar cycloadditions are discussed with mechanistic interpretations.
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110
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Hanessian S, Auzzas L, Larsson A, Zhang J, Giannini G, Gallo G, Ciacci A, Cabri W. Vorinostat-like molecules as structural, stereochemical, and pharmacological tools. ACS Med Chem Lett 2010; 1:70-4. [PMID: 24900179 DOI: 10.1021/ml100028g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2009] [Accepted: 03/03/2010] [Indexed: 01/04/2023] Open
Abstract
The inhibitory activity of an ω-alkoxy analogue of the HDAC inhibitor, Vorinostat (SAHA), against the 11 isoforms of HDAC is described and evaluated with regard to structural biology information retrieved through computational methods. Preliminary absorption and metabolism studies were performed, which positioned this compound as a potential candidate for further preclinical studies and delineated measures for improving its pharmacokinetic profile.
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111
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Hanessian S, Shao Z, Betschart C, Rondeau JM, Neumann U, Tintelnot-Blomley M. Structure-based design and synthesis of novel P2/P3 modified, non-peptidic β-secretase (BACE-1) inhibitors. Bioorg Med Chem Lett 2010; 20:1924-7. [DOI: 10.1016/j.bmcl.2010.01.139] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2009] [Revised: 01/22/2010] [Accepted: 01/27/2010] [Indexed: 10/19/2022]
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112
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Hanessian S, Mi X. An Organocatalytic Approach to Enantiopure 2,6-Disubstituted Tetrahydropyranols. Synlett 2010. [DOI: 10.1055/s-0029-1219354] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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113
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Hanessian S, Maianti JP. Biomimetic synthesis and structural refinement of the macrocyclic dimer aminoglycoside 66-40C—the remarkably selective self-condensation of a putative aldehyde intermediate in the submerged culture medium producing sisomicin. Chem Commun (Camb) 2010; 46:2013-5. [DOI: 10.1039/b925668g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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114
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Hanessian S, Boyer N, Reddy GJ, Deschênes-Simard B. Total synthesis of oidiodendrolides and related norditerpene dilactones from a common precursor: metabolites CJ-14,445, LL-Z1271gamma, oidiolactones A, B, C, and D, and nagilactone F. Org Lett 2009; 11:4640-3. [PMID: 19778011 DOI: 10.1021/ol901896c] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient, high-yielding strategy has been developed for the asymmetric total synthesis of seven norditerpenoid dilactones known for their diverse biological properties. The three key steps employed to obtain a tricyclic lactone intermediate involved a Morita-Baylis-Hillman reaction, the stereocontrolled construction of a gamma-lactone through bromolactonization, and an efficient catalytic Reformatsky-type reaction. Access to CJ-14,445, LL-Z1271gamma, oidiolactones A, B, C, and D, and nagilactone F was possible from a common intermediate. Structures and stereochemistry were determined by X-ray analysis.
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115
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Hanessian S, Wang X, Ersmark K, DelValle JR, Klegraf E. Total Synthesis and Structural Revision of the Presumed Aeruginosins 205A and B. Org Lett 2009. [DOI: 10.1021/ol9025342] [Citation(s) in RCA: 2] [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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116
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Hanessian S, Wang X. Applications of the N-tert-Butylsulfonyl (Bus) Protecting Group in Amino Acid and Peptide Chemistry. Synlett 2009. [DOI: 10.1055/s-0029-1217996] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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117
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Hanessian S, Wang X, Ersmark K, Del Valle JR, Klegraf E. Total Synthesis and Structural Revision of the Presumed Aeruginosins 205A and B. Org Lett 2009; 11:4232-5. [DOI: 10.1021/ol901702k] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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118
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Hanessian S, Deschênes-Simard B, Simard D. Exploring the unique reactivities of heterobicyclic tetrazoles—access to functionally diverse and versatile heterocyclic scaffolds. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.06.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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119
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Hanessian S, Therrien E, Zhang J, Otterlo WV, Xue Y, Gustafsson D, Nilsson I, Fjellström O. From natural products to achiral drug prototypes: potent thrombin inhibitors based on P2/P3 dihydropyrid-2-one core motifs. Bioorg Med Chem Lett 2009; 19:5429-32. [PMID: 19674897 DOI: 10.1016/j.bmcl.2009.07.107] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2009] [Revised: 07/21/2009] [Accepted: 07/22/2009] [Indexed: 11/16/2022]
Abstract
A series of dihydropyrid-2-ones was synthesized and tested for inhibitory activity against serine protease enzymes. Moderate to low nanomolar inhibitory activities were obtained against thrombin and excellent selectivity against trypsin was observed.
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120
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Cengelli F, Grzyb J, Montoro A, Hofmann H, Hanessian S, Juillerat-Jeanneret L. Surface-Functionalized Ultrasmall Superparamagnetic Nanoparticles as Magnetic Delivery Vectors for Camptothecin. ChemMedChem 2009; 4:988-97. [DOI: 10.1002/cmdc.200800424] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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121
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Hanessian S, Riber L, Marin J. Diastereoselective Synthesis
of Functionally Diverse Substituted Pipecolic Acids. Synlett 2008. [DOI: 10.1055/s-0028-1087477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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122
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Hanessian S, Szychowski J, Maianti JP. Synthesis and Comparative Antibacterial Activity of Verdamicin C2 and C2a. A New Oxidation of Primary Allylic Azides in Dihydro[2H]pyrans. Org Lett 2008; 11:429-32. [DOI: 10.1021/ol802421d] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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123
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Hanessian S, Auzzas L. The practice of ring constraint in peptidomimetics using bicyclic and polycyclic amino acids. Acc Chem Res 2008; 41:1241-51. [PMID: 18646869 DOI: 10.1021/ar8000052] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Medicinal chemistry has witnessed major advances with the discovery of small synthetic molecules that mimic natural peptidic substrates. These small synthetic mimics do not undergo proteolytic degradation, an advantage they hold over their natural counterparts. Small synthetic molecules make up a number of life-saving marketed drugs that inhibit certain physiologically relevant proteases. The advent of sophisticated instrumental methods, such as X-ray crystallography and high-field NMR, has played a pivotal role in the design of structure-based enzyme inhibitors. Highly stereocontrolled methods of synthesis have led to a variety of functionally diverse molecules that function as peptidomimetics because they have isosteric subunits not affected by proteolytic enzymes. Further studies to optimize biological activity and achieve desirable pharmacokinetic profiles can eventually lead to drug substances. The practice of constraining natural amino acids like their conformationally rigid counterparts has been highly successful in the design and synthesis of peptidomimetic molecules. With some notable exceptions, structural information gathered from protein X-ray crystallography of therapeutically relevant target enzymes, alone or in complex forms with inhibitor molecules, has been instrumental in the design of peptidomimetics. For example, a significant number have become marketed drugs as antihypertensives and antivirals. Natural products have also been a source of inspiration for the design and synthesis of truncated analogues with the intention of maintaining, or even improving, their biological activities. However, lower molecular weight peptides are not suitable as therapeutic agents because they are subject to rapid amide proteolysis. They are poorly transported to the brain and rapidly excreted through the liver and kidney. Thus, lower molecular weight peptides are eliminated as potential drug substances in clinical practice. A synthetic peptidomimetic is needed that is resistant to cleavage but maintains its biological activity. Conformationally constrained monocyclic and bicyclic unnatural amino acids can be directly incorporated in a potential inhibitor molecule as part of the design element. In this Account, we describe our efforts in the synthesis of constrained azacycles that contain proline or pipecolic acid as an integral part of bicyclic and polycyclic amino acids. We devised syntheses of conformationally biased monocyclic, bicyclic, and polycyclic amino acid analogues, into which pharmacologically or structurally relevant functional groups were incorporated. Stereocontrolled reactions for C-C, C-N, and C-O bond formation had to be implemented on appropriately protected amino acid frameworks. A number of these frameworks provided access to functionally diverse scaffolds for further use as core subunits in more elaborated structures. Specific applications as peptidomimetics of natural substrates for relevant enzymes, such as thrombin, were also pursued, resulting in highly active inhibitors in vitro.
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124
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Hanessian S, Simard D, Deschênes-Simard B, Chenel C, Haak E. Proximity-Assisted Cycloaddition ReactionsFacile Lewis Acid-Mediated Synthesis of Diversely Functionalized Bicyclic Tetrazoles. Org Lett 2008; 10:1381-4. [DOI: 10.1021/ol703071c] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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125
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Hanessian S, Simard D, Bayrakdarian M, Therrien E, Nilsson I, Fjellström O. Design, synthesis, and thrombin-inhibitory activity of pyridin-2-ones as P2/P3 core motifs. Bioorg Med Chem Lett 2008; 18:1972-6. [DOI: 10.1016/j.bmcl.2008.01.122] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2007] [Revised: 01/30/2008] [Accepted: 01/30/2008] [Indexed: 11/25/2022]
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