Progress in the Chemistry of Organic Natural Products 105

Progress in the Chemistry of Organic Natural Products

Free sample

The first contribution reviews the occurrence of xanthine alkaloids in the plant kingdom and the elucidation of the caffeine biosynthesis pathway, providing details of the N-methyltransferases, belonging to the motif B' methyltransferase family which catalyze three steps in the four step pathway leading from xanthosine to caffeine. The second contribution in this book provides a background on the molecule and related compounds and update knowledge on the most recent advances in Iboga alkaloids. The third contribution presents a comprehensive analysis of frequently occurring errors with respect to 13C NMR spectroscopic data and proposes a straightforward protocol to eliminate a high percentage of the most obvious errors.
Read more
Collapse
Loading...

Additional Information

Publisher
Springer
Read more
Collapse
Published on
Feb 13, 2017
Read more
Collapse
Pages
215
Read more
Collapse
ISBN
9783319497129
Read more
Collapse
Read more
Collapse
Read more
Collapse
Language
English
Read more
Collapse
Genres
Medical / Pharmacy
Science / Chemistry / Clinical
Science / Chemistry / Organic
Science / Life Sciences / Biochemistry
Technology & Engineering / Chemical & Biochemical
Read more
Collapse
Content Protection
This content is DRM protected.
Read more
Collapse

Reading information

Smartphones and Tablets

Install the Google Play Books app for Android and iPad/iPhone. It syncs automatically with your account and allows you to read online or offline wherever you are.

Laptops and Computers

You can read books purchased on Google Play using your computer's web browser.

eReaders and other devices

To read on e-ink devices like the Sony eReader or Barnes & Noble Nook, you'll need to download a file and transfer it to your device. Please follow the detailed Help center instructions to transfer the files to supported eReaders.

This thesis mainly describes the development of a screening process for a mirror-image library of chiral natural products. It demonstrates how, by using mirror-image proteins for the screening of available natural products, unavailable mirror-image isomers of natural products can be screened in a mirror process. Moreover, as mirror-image isomers including target proteins and natural products are mainly prepared by means of chemical synthesis, the screening strategy presented here suggests the importance of organic chemistry.

Natural products are commonly used as valuable resources for drug discovery. However, as they are mostly produced as single enantiomeric forms, researchers have tested o

nly natural products bearing one stereochemistry available in nature. As natural products and their enantiomers have identical physicochemical properties and different biological activities, mirror-image isomers of natural products are promising candidates for novel medicinal resources.

In an effort to identify anticancer agents from the mirror-image library, chemical protein syntheses of some target oncoproteins, MDM2, MDMX and Grb2, and their applications to the chemical array screening process were achieved. In the course of this process the NP843 enantiomer, which is the enantiomer of an α-tocopherol derivative, was successfully identified as a novel MDM2-p53 interaction inhibitor. These results clearly show that a mirror-image library of chiral natural products represents an invaluable medicinal resource. Accordingly, the chemistry-based screening strategy described in this thesis will be of great interest to a broad range of chemists involved in natural product, medicinal, and synthetic chemistry.

Resin glycosides are part of a very extensive family of secondary metabolites known as glycolipids or lipo-oligosaccharides and are constituents of complex resins (glycoresins) (1) unique to the morning glory family, Convolvulaceae (2). These active principles are responsible for the drastic purgative action of all the important Convolvulaceous species used in traditional medicine throughout the world since ancient times. Several commercial purgative crude drugs can be prepared from the roots of different species of Mexican morning glories. Their incorporation as therapeutic agents in Europe is an outstanding example of the assimilation of botanical drugs from the Americas as substitutes for traditional Old World remedies (3). Even though phytochemical investigations on the constituents of these drugs were initiated during the second half of the nineteenth century, the structure of their active ingredients still remains poorly known for some examples of these purgative roots. During the last two decades, the higher resolution c- abilities of modern analytical isolation techniques used in conjunction with pow- ful spectroscopic methods have facilitated the elucidation of the active principles of these relevant herbal products. This chapter describes the ethnobotanical information associated with the p- gative morning glory species and how traditional usages were instrumental in plant selection for chemical studies. The advantages and limitations of available analy- cal techniques for the isolation, puri?cation, and structure characterization of the individual constituents of these complex glycoconjugates are also discussed.
Covering everything you need to study for and pass the Pharmacy Technician Certification Board (PTCB) and ExCPT exams, Mosby's Review for the Pharmacy Technician Certification Examination, 3rd Edition makes exam preparation easy. Review the content you'll see on the exam with handy outlines, test-taking tips and strategies, and electronic flash cards. Written by noted pharmacy technician educator James J. Mizner, this complete review tests your knowledge and simulates the actual PTCB exam with 17 different, 100-question practice exams in the book and online. This edition is modeled after the updated Pharmacy Technician Certification Exam Blueprint.A total of 1,700 review questions are included in 17 practice exams in the book and online.100-question format of each practice exam simulates the PTCB and ExCPT exams, with multiple-choice questions and the same balance of content, for a realistic test taking experience.700 electronic flash cards help you learn and remember facts by covering the top 200 most prescribed pharmaceuticals, top 50 herbals, abbreviations, and sound-alike drugs.Review content reflects the new percentages covered on the PTCB exam.A convenient outline format helps you to quickly review important information you'll see on the exam.Tips and suggestions prepare you for test-taking success by providing an insider’s perspective on what to expect and how to prepare for your exam when you have limited time. Seven practice exams in the book feature the same format and content emphasis as the national exam. Ten practice exams on the Evolve companion website in both timed and untimed modes help you identify any areas of weakness, and include instant feedback and remediation. UPDATED content includes current drug information and pharmacy practice procedures based on the new Pharmacy Technician Certification Exam Blueprint.NEW! Chapter objectives provide a clear breakdown of content and goals for review.
Medicinal chemistry is a complex topic. Written in an easy to follow and conversational style, Basic Concepts in Medicinal Chemistry focuses on the fundamental concepts that govern the discipline of medicinal chemistry as well as how and why these concepts are essential to therapeutic decisions. The book emphasizes functional group analysis and the basics of drug structure evaluation.

In a systematic fashion, learn how to identify and evaluate the functional groups that comprise the structure of a drug molecule and their influences on solubility, absorption, acid/base character, binding interactions, and stereochemical orientation. Relevant Phase I and Phase II metabolic transformations are also discussed for each functional group.

Key features include:
• Discussions on the roles and characteristics of organic functional groups, including the identification of acidic and basic functional groups.
• How to solve problems involving pH, pKa, and ionization; salts and solubility; drug binding interactions; stereochemistry; and drug metabolism.
• Numerous examples and expanded discussions for complex concepts.
• Therapeutic examples that link the importance of medicinal chemistry to pharmacy and healthcare practice.
• An overview of structure activity relationships (SARs) and concepts that govern drug design.
• Review questions and practice problems at the end of each chapter that allow readers to test their understanding, with the answers provided in an appendix.

Whether you are just starting your education toward a career in a healthcare field or need to brush up on your organic chemistry concepts, this book is here to help you navigate medicinal chemistry.

About the Authors

Marc W. Harrold, BS, Pharm, PhD, is Professor of Medicinal Chemistry at the Mylan School of Pharmacy, Duquesne University, Pittsburgh, PA. Professor Harrold is the 2011 winner of the Omicron Delta Kappa "Teacher of the Year" award at Duquesne University. He is also the two-time winner of the "TOPS"  (Teacher of the Pharmacy School) award at the Mylan School of Pharmacy.

Robin M. Zavod, PhD, is Associate Professor for Pharmaceutical Sciences at the Chicago College of Pharmacy, Midwestern University, Downers Grove, IL, where she was awarded the 2012 Outstanding Faculty of the Year award. Professor Zavod also serves on the adjunct faculty for Elmhurst College and the Illinois Institute of Technology. She currently serves as Editor-in-Chief of the journal Currents in Pharmacy Teaching and Learning.

©2019 GoogleSite Terms of ServicePrivacyDevelopersArtistsAbout Google|Location: United StatesLanguage: English (United States)
By purchasing this item, you are transacting with Google Payments and agreeing to the Google Payments Terms of Service and Privacy Notice.