Ligand Design in Medicinal Inorganic Chemistry
John Wiley & Sons Inc (Verlag)
978-1-118-48852-2 (ISBN)
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Ligand Design in Medicinal Inorganic Chemistry presents the state-of-the-art in ligand design for medicinal inorganic chemistry applications. Each individual chapter describes and explores the application of compounds that either target a disease site, or are activated by a disease-specific biological process.
Ligand design is discussed in the following areas:
Platinum, Ruthenium, and Gold-containing anticancer agents
Emissive metal-based optical probes
Metal-based antimalarial agents
Metal overload disorders
Modulation of metal-protein interactions in neurodegenerative diseases
Photoactivatable metal complexes and their use in biology and medicine
Radiodiagnostic agents and Magnetic Resonance Imaging (MRI) agents
Carbohydrate-containing ligands and Schiff-base ligands in Medicinal Inorganic Chemistry
Metalloprotein inhibitors
Ligand Design in Medicinal Inorganic Chemistry provides graduate students, industrial chemists and academic researchers with a launching pad for new research in medicinal chemistry.
Tim Storr, Department of Chemistry, Simon Fraser University, Canada Professor Storr has over thirteen years' experience in the field of bioinorganic chemistry and he currently has active research programs in cancer imaging using metal-based agents, and also in the design of metal binding agents for metal overload applications. He teaches a graduate course in bioinorganic chemistry at Simon Fraser University. Professor Storr was a member of the organizing committee for the 2011 International Conference on Biological Inorganic Chemistry, and is currently organizing a ligand design symposium at the upcoming 2012 Canadian Chemistry Conference.
About the Editor xiii
List of Contributors xv
1 Introduction to Ligand Design in Medicinal Inorganic Chemistry 1
Michael R. Jones, Dustin Duncan, and Tim Storr
References 7
2 Platinum-Based Anticancer Agents 9
Alice V. Klein and Trevor W. Hambley
2.1 Introduction 9
2.2 The advent of platinum-based anticancer agents 9
2.3 Strategies for overcoming the limitations of cisplatin 11
2.4 The influence of ligands on the physicochemical properties of platinum anticancer complexes 11
2.4.1 Lipophilicity 11
2.4.2 Reactivity 13
2.4.3 Rate of reduction 14
2.5 Ligands for enhancing the anticancer activity of platinum complexes 15
2.5.1 Ligands for improving DNA affinity 15
2.5.2 Ligands for inhibiting enzymes 17
2.6 Ligands for enhancing the tumour selectivity of platinum complexes 20
2.6.1 Ligands for targeting transporters 21
2.6.2 Ligands for targeting receptors 22
2.6.3 Ligands for targeting the EPR effect 28
2.6.4 Ligands for targeting bone cancer 33
2.7 Ligands for photoactivatable platinum complexes 35
2.8 Conclusions 36
References 37
3 Coordination Chemistry and Ligand Design in the Development of Metal Based Radiopharmaceuticals 47
Eszter Boros, Bernadette V. Marquez, Oluwatayo F. Ikotun, Suzanne E. Lapi, and Cara L.
Ferreira
3.1 Introduction 47
3.1.1 Metals in nuclear medicine 48
3.1.2 The importance of coordination chemistry 49
3.1.3 Overview 50
3.2 General metal based radiopharmaceutical design 50
3.2.1 Choice of radionuclide 50
3.2.2 Production of the radiometal starting materials 51
3.2.3 Ligand and chelate design consideration 51
3.3 Survey of the coordination chemistry of radiometals applicable to nuclear medicine 53
3.3.1 Technetium 53
3.3.2 Rhenium 56
3.3.3 Gallium 57
3.3.4 Indium 60
3.3.5 Yttrium and lanthanides 61
3.3.6 Copper 62
3.3.7 Zirconium 65
3.3.8 Scandium 66
3.3.9 Cobalt 68
3.4 Conclusions 71
References 71
4 Ligand Design in d-Block Optical Imaging Agents and Sensors 81
Mike Coogan
4.1 Summary and scope 81
4.2 Introduction 82
4.2.1 Criteria for biological imaging optical probes 82
4.3 Overview of transition-metal optical probes in biomedicinal applications 83
4.3.1 Common families of transition metal probes 83
4.4 Ligand design for controlling photophysics 87
4.4.1 Photophysical processes in transition metal optical imaging agents and sensors 87
4.4.2 Photophysically active ligand families – tuning electronic levels 87
4.4.3 Ligands which control photophysics through indirect effects 90
4.4.4 Transition metal optical probes with carbonyl ligands 90
4.5 Ligand design for controlling stability 91
4.6 Ligand design for controlling transport and localisation 91
4.6.1 Passive diffusion 91
4.6.2 Active transport 92
4.7 Ligand design for controlling distribution 92
4.7.1 Mitochondrial-targeting probes 92
4.7.2 Nuclear-targeting probes 93
4.7.3 Bioconjugation 94
4.8 Selected examples of ligand design for important individual probes 101
4.8.1 A pH-sensitive ligand to control Ir luminescence 101
4.8.2 Dimeric NHC ligands for gold cyclophanes 102
4.9 Transition metal probes incorporating or capable of more than one imaging mode 103
4.9.1 Bimodal MRI/optical probes 103
4.9.2 Bimodal radio/optical probes 104
4.9.3 Bimodal IR/optical probes 106
4.10 Conclusions and prospects 106
Abbreviations 108
References 108
5 Luminescent Lanthanoid Probes 113
Edward S. O’Neill and Elizabeth J. New
5.1 Introduction 113
5.2 Luminescent probes 114
5.3 The lanthanoids – an overview 116
5.4 Photophysical properties of luminescent lanthanoid complexes 116
5.4.1 The need for a sensitiser 117
5.5 The suitability of lanthanoid complexes as luminescent probes 119
5.6 Modulating chemical properties by ligand design 120
5.6.1 Chemical stability 120
5.6.2 Photophysical properties 122
5.6.3 Analyte response 123
5.7 Modulating biological properties by ligand design 129
5.7.1 Cellular uptake 129
5.7.2 Localisation to desired region of the cell 131
5.7.3 Maintenance of cellular homeostasis 135
5.8 Concluding remarks 138
Acknowledgement 138
References 138
6 Metal Complexes of Carbohydrate-targeted Ligands in Medicinal Inorganic Chemistry 145
Yuji Mikata and Michael Gottschaldt
6.1 Introduction 145
6.2 Radioactive metal complexes bearing a carbohydrate moiety 147
6.3 MRI contrast agents utilizing metal complexes bearing carbohydrate moieties 150
6.4 Fluorescent complexes with carbohydrate-conjugated functions 153
6.5 Carbohydrate-attached photosensitizers for photodynamic therapy (PDT) 157
6.6 Carbohydrate-based metal complexes exhibiting anticancer activity 161
6.7 Carbohydrate-appended metallic nanoparticles, quantum dots, electrodes and surfaces 165
6.8 Concluding remarks 167
References 168
7 Design of Schiff Base-derived Ligands: Applications in Therapeutics and Medical Diagnosis 175
Rafael Pinto Vieira and Heloisa Beraldo
7.1 Introduction 175
7.2 Design of thiosemicarbazones and hydrazones as drug candidates for cancer chemotherapy 176
7.3 Design of bis(thiosemicarbazone) ligands 184
7.3.1 Bis(thiosemicarbazones) and their metal complexes as anticancer agents 184
7.3.2 Design of bis(thiosemicarbazones) as ligands for copper(II) complexes with potential applications in medical diagnosis 186
7.3.3 Design of functionalized bis(thiosemicarbazone) ligands to target selected biological processes 189
7.4 Design of Schiff base-derived ligands as anti-parasitic drug candidates: Applications in the therapeutics of chagas disease 193
7.5 Concluding remarks 197
References 197
8 Metal-based Antimalarial Agents 205
Maribel Navarro and Christophe Biot
8.1 Background 205
8.2 Standard antimalarial chemotherapy 208
8.2.1 Quinoline-based antimalarials 208
8.2.2 Quinoline-based antimalarials target 209
8.2.3 Other standard antimalarial therapies 210
8.3 Metal complexes in malaria 212
8.3.1 Chloroquine as an inter-ligand in the design of metal-based antimalarial agents 212
8.3.2 Chloroquine as an intra-ligand in the design of metal-based antimalarial agents 214
8.3.3 Trioxaquines as a ligand in the design of metal-based antimalarial agents 218
8.3.4 Other standard antimalarial drugs and diverse ligands used in the design of metal-based antimalarial agents 218
8.4 Conclusion 220
Acknowledgements 221
References 221
9 Therapeutic Gold Compounds 227
Susan J. Berners-Price and Peter J. Barnard
9.1 Introduction 227
9.2 Antiarthritic gold drugs 229
9.2.1 Gold (I) thiolates 229
9.2.2 Gold (I) phosphines 229
9.2.3 Design of specific enzyme inhibitors 230
9.3 Gold complexes as anticancer agents 231
9.3.1 Gold(I) compounds 231
9.3.2 Gold (III) compounds 241
9.4 Gold complexes as antiparasitic agents 244
9.4.1 Metal drug synergism 245
9.4.2 Emerging parasite drug targets for gold compounds 245
9.5 Concluding remarks: Design of gold complexes that target specific proteins 246
Acknowledgements 248
References 248
10 Ligand Design to Target and Modulate Metal–Protein Interactions in Neurodegenerative Diseases 257
Michael W. Beck, Amit S. Pithadia, Alaina S. DeToma, Kyle J. Korshavn, and Mi Hee Lim
10.1 Introduction 257
10.1.1 Metals in the brain 257
10.1.2 Aberrant metal–protein interactions 259
10.1.3 Oxidative stress 260
10.2 Neurodegenerative diseases 261
10.2.1 Alzheimer’s disease (AD) 261
10.2.2 Parkinson’s disease (PD) 261
10.2.3 Prion disease 261
10.2.4 Huntington’s disease (HD) 264
10.2.5 Amyotrophic lateral sclerosis (ALS) 264
10.3 Ligand design to target and modulate metal–protein interactions 265
10.3.1 Metal chelating compounds 267
10.3.2 Small molecules designed for metal–protein complexes 269
10.3.3 Other relevant compounds 272
10.3.4 Naturally occurring molecules 273
10.4 Conclusions 274
Abbreviations 275
References 276
11 Rational Design of Copper and Iron Chelators to Treat Wilson’s Disease and Hemochromatosis 287
Christelle Gateau, Elisabeth Mintz, and Pascale Delangle
11.1 Introduction 287
11.2 Chelating agents 288
11.2.1 Thermodynamic parameters 288
11.2.2 Principles of coordination chemistry applied to chelation therapy 289
11.2.3 Examples of classical chelating agents 290
11.3 Modern medicinal inorganic chemistry and chelation therapy 291
11.4 Iron overload 292
11.4.1 Iron distribution and homeostasis 292
11.4.2 Iron overload diseases 294
11.4.3 Fe3+ chelators 295
11.4.4 Current developments 296
11.5 Copper overload in Wilson’s disease 299
11.5.1 Copper metabolism 299
11.5.2 Copper homeostasis 300
11.5.3 Wilson’s disease 303
11.6 Current developments in copper overload treatments 304
11.6.1 From Cu homeostasis understanding to the rational design of drugs 304
11.6.2 Cu+ chelating units inspired from proteins involved in Cu homeostasis 305
11.6.3 Cu+ chelators inspired from metallochaperones 306
11.6.4 Cysteine-rich compounds inspired from metallothioneins 307
11.6.5 Liver-targeting: the ASGP-R 308
11.6.6 Two glycoconjugates that release high affinity Cu chelators in hepatocytes 308
11.7 Conclusion 311
Acknowledgments 312
References 312
12 MRI Contrast Agents 321
Célia S. Bonnet and Éva Tóth
12.1 Introduction to MRI contrast agents 321
12.2 Ligand optimization to increase relaxivity 323
12.2.1 Hydration number 324
12.2.2 Optimization of water exchange kinetics via rational ligand design 325
12.2.3 Optimization of the rotational dynamics via rational ligand design: Size and flexibility 329
12.3 Ligand design for CEST agents 332
12.3.1 Application of paramagnetic ions – PARACEST 333
12.4 Ligand design for responsive probes 333
12.4.1 Probes responsive to pH 334
12.4.2 Probes responsive to physiological cations 338
12.4.3 Probes responsive to enzymes 344
12.5 Conclusions 348
Abbreviations 348
References 348
13 Photoactivatable Metal Complexes and Their Use in Biology and Medicine 355
Tara R. deBoer-Maggard and Pradip K. Mascharak
13.1 Introduction 355
13.2 Cisplatin-inspired photoactivatable chemotherapeutics 358
13.3 Metal-based photosensitizers in photodynamic therapy 360
13.4 Photoinduced interactions of coordination complexes with DNA 362
13.4.1 Photocleavage of DNA with coordination complexes 362
13.4.2 Photoactivatable complexes as antisense agents 364
13.5 Photoactivatable metal complexes that release small bioactive molecules 367
13.6 Conclusion 371
References 372
14 Metalloprotein Inhibitors 375
David P. Martin, David T. Puerta, and Seth M. Cohen
14.1 Metal binding groups in metalloprotein inhibitor design 375
14.2 Thiols, carboxylates, phosphates, and hydroxamates 379
14.3 MBGs related to hydroxamic acids 382
14.4 MBGs related to carboxylic acids 387
14.5 MBGs related to thiols 391
14.6 Amine, alcohol, and carbonyl MBGs 393
14.7 Other MBGs 395
14.8 Conclusion 399
References 401
15 Ruthenium Anticancer Compounds with Biologically-derived Ligands 405
Changhua Mu and Charles J. Walsby
15.1 Introduction 405
15.1.1 Simple coordination complexes 406
15.1.2 Ruthenium(III) complexes with heterocyclic N-donor and/or DMSO ligands 406
15.1.3 Ruthenium(II) arene complexes 408
15.1.4 Polypyridyl complexes 410
15.1.5 Other ruthenium anticancer compounds 411
15.2 Amino acids and amino acid-containing ligands 411
15.3 Peptides and peptide-functionalized ligands 413
15.4 Coordinated proteins as ligands 416
15.5 Carbohydrate-based ligands 419
15.6 Purine, nucleoside, and oligonucleotide ligands 422
15.7 Other selected ruthenium complexes with biological ligands 424
15.7.1 steroids 424
15.7.2 Curcumin – an example of a natural product ligand 425
15.8 Conclusion 426
References 426
Index 439
| Verlagsort | New York |
|---|---|
| Sprache | englisch |
| Maße | 178 x 254 mm |
| Gewicht | 1025 g |
| Themenwelt | Naturwissenschaften ► Chemie ► Anorganische Chemie |
| ISBN-10 | 1-118-48852-0 / 1118488520 |
| ISBN-13 | 978-1-118-48852-2 / 9781118488522 |
| Zustand | Neuware |
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