Second Edition BIOACTIVE COMPOUNDS from NATURAL SOURCES Natural Products as Lead Compounds in Drug Discovery Edited by Corrado Tringali Boca Raton London New York CRC Press is an imprint of the Taylor & Francis Group, an informa business CRC Press Taylor & Francis Group 6000 Broken Sound Parkway NW, Suite 300 Boca Raton, FL 33487-2742 © 2012 by Taylor & Francis Group, LLC CRC Press is an imprint of Taylor & Francis Group, an Informa business No claim to original U.S. Government works Version Date: 20111017 International Standard Book Number-13: 978-1-4398-7066-2 (eBook - PDF) This book contains information obtained from authentic and highly regarded sources. Reasonable efforts have been made to publish reliable data and information, but the author and publisher cannot assume responsibility for the validity of all materials or the consequences of their use. 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CCC is a not-for-profit organization that provides licenses and registration for a variety of users. For organizations that have been granted a photocopy license by the CCC, a separate system of payment has been arranged. Trademark Notice: Product or corporate names may be trademarks or registered trademarks, and are used only for identification and explanation without intent to infringe. Visit the Taylor & Francis Web site at http://www.taylorandfrancis.com and the CRC Press Web site at http://www.crcpress.com Contents Preface.......................................................................................................................ix Editor.........................................................................................................................xi Contributors............................................................................................................xiii Chapter 1 Strategies.and.Methods.for.a.Sustainable.Search.for.Bioactive. Compounds............................................................................................1 Lars Bohlin, Cecilia Alsmark, Ulf Göransson, Mattias Klum, Christina Wedén, and Anders Backlund Chapter 2 Discovery.of.Potential.Anticancer.Agents.from.Aquatic. Cyanobacteria,.Filamentous.Fungi,.and.Tropical.Plants....................37 Jimmy Orjala, Nicholas H. Oberlies, Cedric J. Pearce, Steven M. Swanson, and A. Douglas Kinghorn Chapter 3 Metabolic.Engineering.of.Natural.Product.Biosynthesis....................65 Xinkai Xie, Kangjian Qiao, and Yi Tang Chapter 4 Computational.Approaches.for.the.Discovery.of.Natural. Lead Structures...................................................................................97 Judith M. Rollinger and Gerhard Wolber Chapter 5 Recent.Advances.in.the.Application.of.Electronic.Circular. Dichroism.for.Studies.of.Bioactive.Natural.Products.......................133 Nina Berova, George Ellestad, Koji Nakanishi, and Nobuyuki Harada Chapter 6 Natural.Products.as.Treatments.for.and.Leads.to.Active. Compounds.in.Viral.Diseases...........................................................167 David J. Newman and Gordon M. Cragg Chapter 7 Natural.Products.as.Inhibitors.of.Hypoxia-Inducible.Factor-1.........187 Dale G. Nagle and Yu-Dong Zhou v vi Contents Chapter 8 Antitumor.or.Wound.Healing.Actions.of.Natural.Products. through.Inhibiting.or.Enhancing.Angiogenesis................................265 Yoshiyuki Kimura Chapter 9 From.Natural.Polyphenols.to.Synthetic.Antitumor.Agents..............299 Carmela Spatafora and Corrado Tringali Chapter 10 Resveratrol.against.Major.Pathologies:.From.Diet.Prevention. to Possible.Alternative.Chemotherapies.with New. Structural Analogues.................................................................................339 Norbert Latruffe, Dominique Delmas, Gérard Lizard, Corrado Tringali, Carmela Spatafora, Dominique Vervandier-Fasseur, and Philippe Meunier Chapter 11 Drug.Discovery.from Natural.Substances:. A Case Study— Camptothecins........................................................379 Gabriele Fontana and Lucio Merlini Chapter 12 Plant.Compounds.and.Derivatives.as.Inhibitors.of.Cancer.Cell. Multidrug.Resistance........................................................................409 Virginia Lanzotti, Orazio Taglialatela-Scafati, Ernesto Fattorusso, and Attilio Di Pietro Chapter 13 Recent.Advances.in.the.Search.of.Novel.Calmodulin.Inhibitors. from.Selected.Mexican.Plants.and.Fungi.........................................451 Rachel Mata, Mario Figueroa, Isabel Rivero-Cruz, and Martín González-Andrade Chapter 14 Neuroprotective.Effects.of.Natural.Products.from.Traditional. Chinese.Herbs...................................................................................497 Hai Yan Zhang and Xi Can Tang Chapter 15 Drugs.for.the.Neglected.Disease.Malaria.Based. on Natural Products.......................................................................525 S. Brøgger Christensen and Ib Christian Bygbjerg Contents vii Chapter 16 Endophytic.Microorganisms.as.a.Source. of Bioactive Compounds.............................................................551 Yoshihito Shiono and Ken-ichi Kimura Chapter 17 Biologically.Active.Natural.Products.from.Australian. Marine Organisms.............................................................................579 Robert J. Capon Natural Source Index............................................................................................603 Subject Index.........................................................................................................607 Preface The.first.edition.of.Bioactive Compounds from Natural Sources.was.published.in.the. year.2000,.in.a.period.of.renewed.attention.to.biologically.active.compounds.of.natu- ral.origin..This.followed.two.decades.of.declining.interest.in.natural.products,.partly. due.to.the.expectations.of.the.pharmaceutical.industry.toward.new.technologies.such. as.combinatorial.chemistry.and.high-throughput.screening..The.situation.changed. just.at.the.beginning.of.the.twenty-first.century.as.a.consequence.of.the.observed. reduction.in.the.number.of.new.molecular.entities.approved.for.drug.marketing.dur- ing.the.late.twentieth.century.coupled.with.the.increasing.awareness.of.the.unrivaled. chemical.diversity.originated.by.nature.through.millions.of.years.of.evolution..This. led.to.a.new.drive.toward.the.study.of.bioactive.compounds,.both.directly.obtained. from.natural.sources.or.derived/inspired.by.those.obtained.from.natural.products.. Thus,.natural.products.are.again.under.the.spotlight,.in.particular.for.their.possible. pharmacological.applications,.and.this.is.the.main.reason.for.the.publication.of.this. second.edition,.largely.focusing.on.natural.products.as.lead.compounds.in.drug.dis- covery..This.book.may.be.considered.as.complementary.to.the.first.edition,.which. was.devoted.to.the.“isolation,.characterization,.and.biological.properties”.of.natural. compounds,.with.the.aim.of.connecting.“lead.discovery”.to.“lead.optimization”.in. the.field.of.bioactive.natural.products..This.second.edition.is.actually.a.completely. new.book,.containing.surveys.of.selected.recent.advances.in.an.interdisciplinary. area.covering.chemistry.of.natural.products,.medicinal.chemistry,.biochemistry,.and. other.related.topics..Some.of.the.authors.of.the.first.edition.have.also.contributed. to.this.second.edition.with.entirely.new.chapters,.but.the.majority.of.chapters.have. been.compiled.by.new.authors.who.are.among.the.most.reputed.scientists.in.the.field. Chapter.1.is.an.original.contribution.and.introduces.the.reader.to.strategies.and. methods.in.the.search.for.bioactive.natural.products;.the.following.two.chapters. report.on.various.natural.sources.of.bioactive.compounds.such.as.aquatic.cyano- bacteria,.filamentous.fungi,.and.tropical.plants.(Chapter.2),.or.on.the.tremendous. potentiality.of.metabolic.engineering.of.natural.product.biosynthesis.(Chapter.3).. Two.chapters.are.devoted.to.the.contribution.of.emerging.or.developing.technolo- gies.to.the.study.of.bioactive.natural.compounds,.namely,.computational.methods. (Chapter.4).and.circular.dichroism.(Chapter.5)..Some.of.the.subsequent.chapters. highlight.the.potential.of.natural.or.natural-derived.compounds.for.specific.thera- peutic.applications:.viral.diseases.(Chapter.6),.regulation.of.hypoxia-inducible.fac- tors.(Chapter.7),.and.modulation.of.angiogenesis.in.antitumor.or.wound-healing. activity.(Chapter.8)..Further.chapters.focus.on.selected.examples.of.natural.product. families.and.related.synthetic.analogues,.namely,.polyphenols.(Chapters.9.and.10). and.campthotecins.(Chapter.11)..Chapter.12.deals.with.natural.inhibitors.of.cancer. cell.multidrug.resistance..The.search.for.bioactive.compounds.from.locally.available. sources,.combined.with.modern.targets.of.pharmacological.research,.is.discussed. in.Chapters.13.and.14,.respectively,.devoted.to.calmodulin.inhibitors.from.Mexican. plants.and.fungi.and.neuroprotective.compounds.from.Chinese.traditional.medicine.. ix x Preface Chapter.15.deals.with.the.antimalarial.agents.based.on.natural.products,.whereas. Chapter.16.is.devoted.to.endophytic.microorganisms,.an.emerging.source.of.new. bioactive.compounds..The.importance.of.marine.organisms.as.sources.of.peculiar. natural.products.is.highlighted.in.Chapter.17,.a.survey.of.the.variety.of.products. isolated.from.Australian.marine.organisms. We.hope.that.this.book.may.prove.valuable.for.graduate.and.PhD.students.of. medicinal.chemistry.who.are.keen.to.explore.the.potential.of.bioactive.natural.prod- ucts..Of.course,.the.book.also.seeks.to.provide.useful.information.for.scientists. working.in.various.research.fields.where.natural.products.may.have.a.primary.role. Corrado Tringali Department of Chemical Sciences University of Catania Catania, Italy