Author: John Clark LorenzPublisher:
ISBN:
Category :
Languages : en
Pages : 132
Book Description
The Synthesis of Compounds Related to Indole Alkaloids ; the Addition Products of Anils and Acid Anhydrides
Author: John Clark LorenzSynthesis of Indole Alkaloids
Author: Reuben Murray WhitePublisher:
ISBN:
Category : Drug development
Languages : en
Pages : 258
Book Description
Indole Alkaloids
Author: Maliha UroosPublisher: Elsevier
ISBN: 0323972489
Category : Science
Languages : en
Pages : 236
Book Description
Indole Alkaloids: Spirooxindole details the multistep synthesis of natural products using schematic diagrams, providing a quick-and-easy way to review and understand new and novel synthetic strategies to construct structural frameworks of natural products. As a volume in the Visual Guides to Natural Product Synthesis series, this book presents the schematic total syntheses of natural products containing a “spirooxindole” core structure. It covers spirooxindole molecules through visual diagrams, highlighting key steps involved in total, formal and semi-syntheses. Sections cover Brevianamide A and B, Citrinadin A and B, Coerulescine and Horsfiline, Elacomine and Isoelacomine, Gelsemine, Paraherquamide A and B, Rynchophylline, Isorynchophylline, and more. Visual layouts provide quick-and- easy access to developed synthetic routes towards the targeted spirooxindoles. Outlines synthetic strategies for natural products bearing a spirooxindole core structure Includes schematic diagrams of multistep synthetic routes, highlighting key steps along the way Describes all routes for the formal synthesis, semi-synthesis and total synthesis of spirooxindole alkaloids
Indole Alkaloids
Author: W. I. TaylorPublisher: Elsevier
ISBN: 1483221741
Category : Science
Languages : en
Pages : 162
Book Description
A Course in Organic Chemistry Advanced Section, Volume 27: Indole Alkaloids: An Introduction to the Enamine Chemistry of Natural Products describes the chemistry of selected alkaloids that contain indolic or closely related nuclei. Some five hundred of these compounds have been obtained from about three hundred plants mostly of the family Apocynaceae. This book is composed of 12 chapters that specifically cover the chemistry of the complex indoles. The introductory chapters deal with the origin, isolation, characterization, basic chemistry, and simple derivatives of indole alkaloids. The remaining chapters examine the biogenesis, basic chemistry, stereochemistry, and structure of selected complex alkaloids of various origins. These chapters include tetrahydro-?-carboline, strychnos, iboga, picralima, and eburnamine alkaloids, cinchonamine, quinamine, and ajmaline-sarpagine bases. This text is of great value to organic chemists and researchers.
Indole Alkaloids
Author: RahmanPublisher: CRC Press
ISBN: 9789057022685
Category : Science
Languages : en
Pages : 354
Book Description
Indole alkaloids constitute an important class of natural products which include a large number of pharmacologically important substances such as the anti-tumour alkaloids, vinblastine and vincristine, the blood pressure lowering substance reserpine, the hallucinatory lysergic acid and its derivatives, and the cardio-arrhythmic alkaloid, ajmalicine. This important field has attracted the leading synthetic organic chemists of the present century to develop synthetic approaches to the challenging structural architecture encountered in many indole alkaloids. The book describes the syntheses of various types of indole alkaloids.
The Synthesis of Compounds Related to Indole Alkaloids
Author: John Clark LorenzIndole Alkaloids
Author: William I. TaylorPublisher: Pergamon
ISBN:
Category : Alkaloids
Languages : en
Pages : 170
Book Description
Total Syntheses of Indole Alkaloids and Determination of the Electrophilicity of Benzyne and Related Intermediates
Author: Lucas MorrillPublisher:
ISBN:
Category :
Languages : en
Pages : 395
Book Description
This dissertation encompasses several projects pertaining to natural product total synthesis, reaction methodology development, and kinetic studies. The total synthesis of natural products continues to be a fruitful area of research in organic chemistry. The successful completion of a total synthesis endeavor not only affirms ambitious route designs, but can also allow access to significant amounts of biologically-active compounds. Given that natural product structures inspire the development of new agrochemicals and pharmaceuticals, their syntheses are a worthwhile endeavor. Also, the development of new reaction methodologies and the understanding of fundamental reactivities of many intermediates remain important areas of research. Chapter One offers a current perspective on the field of natural product total synthesis. Alhough historically viewed as a highly competitive field, several recent examples show the growing spirit of collaboration in total synthesis. By forming alliances with chemists in other fields, industries, or laboratories, total synthesis chemists have made many breakthroughs that would arguably not be possible if working independently. Chapters Two and Three describe our laboratory's total syntheses of several bioactive akuammiline alkaloids, including strictamine, 2(S)-cathafoline, akuammiline, -akuammigine, and 10-demethoxynorvincorine. Our strategic approach to the natural products focused on the use of a modern variant of a classic reaction, the Fischer indolization reaction, to install several rings and the common quaternary center found in each target. This strategy allowed for the first total syntheses of akuammilines bearing the methanoquinolizidine core and those that also bear vicinal quaternary centers. In addition, rearrangements of the methanoquinolizidine core were developed that allowed us to access pyrrolidinoindoline-containing akuammilines. Chapter Four describes a series of kinetic studies used to determine the electrophilicity parameter of benzyne and related aryne intermediates. Arynes are a family of strained intermediates whose existence has been postulated for over 100 years. Recent advances have confirmed their existence and proven their synthetic utility. An advanced knowledge of their reactivity thus far has remained elusive. Our laboratory employed the diffusion clock method to measure the rates of reaction between several arynes and a variety of different nucleophilic reaction partners. The result allowed for the first quantification of the electrophilicity of these strained intermediates and should influence synthetic planning in the future. Chapter Five includes a study in the development of reaction methodology. Utilizing a variant of the Fischer Indolization reaction, our laboratory discovered a general method for making aza-indoline structures. This methodology was applied in the synthesis of derivatives of akuammiline alkaloids and Alzheimer's therapeutic molecules. In addition, a predictive computational model of reactivity was derived.
Synthesis of Some Compounds of Interest in the Biogenesis of Indole Alkaloids
Author: Deryck Arnold TaylorPure and Applied Science Books, 1876-1982
Author: Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1374
Book Description
Over 220,000 entries representing some 56,000 Library of Congress subject headings. Covers all disciplines of science and technology, e.g., engineering, agriculture, and domestic arts. Also contains at least 5000 titles published before 1876. Has many applications in libraries, information centers, and other organizations concerned with scientific and technological literature. Subject index contains main listing of entries. Each entry gives cataloging as prepared by the Library of Congress. Author/title indexes.