Progress Toward the Total Synthesis of (+)-fastigilin C and (+)-multiradiatin PDF Download
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Author: John M. Messinger
Publisher:
ISBN:
Category :
Languages : en
Pages : 304
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Author: John M. Messinger
Publisher:
ISBN:
Category :
Languages : en
Pages : 304
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Author:
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ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 758
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Author:
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Category :
Languages : en
Pages :
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BORI, IBRAHIM DANLAMI. Progress Toward the Total Synthesis of 14-Isoazacamptothecin, and Synthesis of Substituted Quinolines. (Under the direction of Professor Daniel Lee Comins.) Studies were conducted with the purpose of completing the first total synthesis of 14-isoazacamptothecin. During the courses of this endeavor, new insights into pyridine chemistry were uncovered. It was demonstrated for the first time that C-4 substitution of 2,5-dibromopyridine via C-4 lithiation is indeed possible. New reactions in heterocyclic chemistry, namely (a) “Halogen Dance-Lithium Migration-Halogen Dance†or “Lithium Migration-Halogen Dance†and (b) Double Halogen Dance†were discovered to have taken place as explanations for the observation of unexpected products. Synthetic methods toward the synthesis of new quinoline analogs using readily available and inexpensive starting materials were developed. Although the initial inspirational target of the project was the AB ring fragment of CPT analogs, new techniques and methods were developed that would be useful in far reaching applications such as in the synthesis of clinically useful compounds and natural products containing a quinoline ring in the parent structure.
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Category : Dissertation abstracts
Languages : en
Pages : 696
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Category : Dissertations, Academic
Languages : en
Pages : 754
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Author: H.K. Wagner
Publisher: Springer Science & Business Media
ISBN: 3642666825
Category : Medical
Languages : en
Pages : 299
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The fact that, of the approximately 600,000 plant species existing on the earth, only some 5 % have been specifically investigated chemically or pharmacologi cally, is a challenge to chemists spezializing in na tural substances and to pharmacologists. In view of the limited number of research capacities and the ever diminishing financial means, this challenge can only be met if, together with an improvement and refinement of methods of analysis, medicinal plant research is carried out on a broader interdisciplinary basis, with comparable, scientifically recognized screening methods, and if it is better coordinated, with greater use of modern documentation means. It is thus necessary in the future to concentrate specifically on projects leading to the development of new medicinal prepara tions. The plenary lectures hold in the present symposium of the 1st International Congress for Research on Medi cinal Plants reflect these efforts and tendencies. At the same time they provide a survey of some of the fields of medicinal plant research which are at present most actual and most intensively researched. They range from plant screening, isolation and structure eluci dation of new principles, to the therapeutical opti mization of a natural product. The lectures given at this congress show clearly the necessity, in addition to national phytochemical so cieties, for a central international organisation, in which all active medicinal plant researchers in the world are included. Their aim should be to provide the impulse for more optimal, rational research, aimed at the solution of specific projects.
Author: László Zechmeister
Publisher:
ISBN:
Category : Biochemistry
Languages : en
Pages : 448
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Author:
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ISBN:
Category :
Languages : en
Pages :
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Author: H. Wagner
Publisher: Springer Science & Business Media
ISBN: 3642651364
Category : Science
Languages : en
Pages : 392
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Book Description
In znodern pharznacognosy chemical and physical-cheznical methods are being used znore and more for the investigation of medicinal plants. This important fact and the increasing involvement of chemistry, biocheznistry and botany in pllarmaceuti cal, znedicinal and general biological questions usher in a new epoch in the disco very of medicinal substances and the development of drugs derived from the plant kingdom. One of the guiding ideas of the first ""Syznposiuzn on Pharznacognosy and Phytocheznistry"" was to promote these developments, to provide an additional sti znulus and to establish.
Author: Jie Jack Li
Publisher: John Wiley & Sons
ISBN: 1118701240
Category : Science
Languages : en
Pages : 371
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Book Description
Following Contemporary Drug Synthesis and The Art of Drug Synthesis (Wiley, 2004 and 2007), two well-received works, is this new book that demystifies the process of modern drug discovery for practitioners and students. An enhanced introduction covers areas such as background, pharmacology, SAR, PK/PD, efficacy, and safety. Focusing on the advantages of process synthesis versus the discovery synthetic route, Modern Drug Synthesis features authoritative coverage by distinguished editors and authors (some chapter authors are the actual inventor of the drug) of twenty different drug molecules.
