Search results for: bioactive-heterocycles-iv

Bioactive Heterocycles IV

Author : Mahmud T.H. Khan
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Bioactive Heterocycles II

Author : Shoji Eguchi
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Bioactive Heterocycles VII

Author : Noboru Motohashi
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Fruits and vegetables contain abundant nutraceuticals or phytochemicals such as carbohydrates, proteins, lipids, vitamins, enzymes, dietary ?bers, min- als, antioxidants, ?avonoids, and anthocyanins and other diverse components including trace chemicals. Interestingly, the ?avonoids and anthocyanins in phytochemicals could be signi?cantly associated with reductions of risk of cardiovascular disease, macular degeneration, and improvements and prev- tions of many other diseases. Actually, ?avonoids and anthocyanins in plants could play a very important role in our daily health. Our ancestors used them as part of daily life for dyestuffs and folklore medicines. Evidentially, the bene?ts of colorful ?avonoids and anthocyanins have been con?rmed by the results of many researchers. As part of the series Topics in Heterocyclic chemistry, this volumetitled Bioactive Heterocycles II presents comprehensive and up-to-date reviews on - lected topics concerning mainly the usefulness for human health of ?avonoids and related compounds, Sophora ?avonoids and their functions in Sophora species (Leguminosae), the relationship of biological activity with the diverse structures of heterocycles by quantum chemical calculation, advances in bio- tive mesoionic heterocycles, and the spectroscopic properties and application of bioactive phenothiazines including also benzo[a]phenothiazines.

Bioactive Heterocycles VI

Author : Noboru Motohashi
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As part of the series Topics in Heterocyclic Chemistry, thisvolumetitledBio- tiveHeterocyclesII presentscomprehensiveandup-to-datereviewsonselected topicsconcerning?avonoidsandanthocyaninsinplants, andheterocyclessuch as bioactive phenothiazines, phenoxazines, and related compounds. The v- ume isseparated into two sections mainly concentrating onthese two topics. There are abundant and diverse ?avonoids with carbohydrates and lipids, alkaloids (betalain alkaloids and other alkaloids), phenols (chromones, c- marins, lignans, quinines, andotherphenolics), terpenoids(monoterpenoids, sesquiterpene lactones, triperpenoid saponins, carotenoids, and other t- penoids), and minerals as micronutritionalphytochemicals in fruits and v- etables of our daily diets. Among these phytochemicals, the ?avonoids have speci?c functionality in relation to age-related diseases such as hypertension, diabetes, cardiacinfarction, cataracts, andcancer.Theauthorsofeachchapter inthe?rst sectionhave presented their evidence in relationtothemechanism ofthepreventative andtherapeutic ability ofthecompounds. The ?rst chapter, "Functionality of Anthocyanins as Alternative Medicine" byNoboruMotohashiandHiroshiSakagami, presentstheirantioxidantme- anism for anthocyanidins, which are present in common foods. It is possible that anthocyanins may have been used both preventatively and clinically as part of many "folklore medicines" worldwide and may have provided heal- carebene?tssincetheappearanceofmankindsome7.5millionyearsago.The review willinform the reader as to their functionalityand mechanism. The second chapter, "Bioactive Mechanism of Interaction between Ant- cyanins and Macromolecules Like DNA and Proteins" by Seetharamappa J- dappagari, Noboru Motohashi, Mamatha P.Gangeenahalli, and James H. N- smith, presents the biological activities of anthocyanins, and the interactions of anthocyanins with DNA and protein. Anthocyanins might protect against damage to health by some types of harmful oxidants through various me- anisms such as their antioxidative activity, protein active site binding, and chelating complex formation. The review presents the interesting interactive mechanism of anthocyanin-DNA complex formation.

Bioactive Heterocyclic Compound Classes

Author : Clemens Lamberth
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The chemistry of heterocycles is an important branch of organic chemistry. This is due to the fact that a large number of natural products, e. g. hormones, antibiotics, vitamins, etc. are composed of heterocyclic structures. Often, these compounds show beneficial properties and are therefore applied as pharmaceuticals to treat diseases or as insecticides, herbicides or fungicides in crop protection. This volume presents important pharmaceuticals. Each of the 20 chapters covers in a concise manner one class of heterocycles, clearly structuredas follows: * Structural formulas of most important examples (market products) * Short background of history or discovery * Typical syntheses of important examples * Mode of action * Characteristic biological activity * Structure-activity relationship * Additional chemistry information (e.g. further transformations, alternative syntheses, metabolic pathways, etc.) * References. A valuable one-stop reference source for researchers in academia and industry as well as for graduate students with career aspirations in the pharmaceutical chemistry.

Heterocyclic N oxides

Author : Angelo Albini
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This book provides a comprehensive presentation of all aspects of heterocyclic N-oxides. Topics discussed include the preparation of these compounds by N-oxidation of heterocycles and simultaneous synthesis of the ring and formation of the N-oxide group; general spectroscopic characteristics and molecular structure; and reactions and recently developed chemistry, including deoxidative substitution, cycloaddition, and photorearrangement. The book also discusses applications, such as organic synthesis via N-oxides, N-oxides as ligands, and patented applications for pharmaceutical, agricultural, and other industrial uses. Several experimental procedures are also examined in detail.

Advances in Heterocyclic Chemistry

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Established in 1960, Advances in Heterocyclic Chemistry is the definitive serial in the area-one of great importance to organic chemists, polymer chemists, and many biological scientists. Written by established authorities in the field, the comprehensive reviews combine descriptive chemistry and mechanistic insight and yield an understanding of how the chemistry drives the properties.

Handbook of Food Science Technology and Engineering 4 Volume Set

Author : Y. H. Hui
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Advances in food science, technology, and engineering are occurring at such a rapid rate that obtaining current, detailed information is challenging at best. While almost everyone engaged in these disciplines has accumulated a vast variety of data over time, an organized, comprehensive resource containing this data would be invaluable to have. The

Advances in Heterocyclic Chemistry

Author : Alan R. Katritzky
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Established in 1960, Advances in Heterocyclic Chemistry is the definitive serial in the area-one of great importance to organic chemists, polymer chemists, and many biological scientists. Written by established authorities in the field, the comprehensive reviews combine descriptive chemistry and mechanistic insight and yield an understanding of how the chemistry drives the properties. Up-to-date results in the subject which continues to gain importance and expand Makes available to graduate students and research workers in academic and industrial laboratories the latest reviews on wide variety of heterocyclic topics The series forms a very substantial database covering wide areas of heterocyclic chemistry

Indian Science Abstracts

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Fluorine in Heterocyclic Chemistry Volume 1

Author : Valentine Nenajdenko
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This two-volume work combines comprehensive information on the chemistry of the fluorinated heterocycles. The material has been divided such that the first volume is dedicated to 5-membered fluorinated heterocycles and macrocycles, while the second volume combines data connected with the chemistry of fluorine containing 6-membered heterocycles. Both volumes will be of interest to synthetic organic chemists in general, and particularly for those colleagues working in the fields of heterocyclic-compound chemistry, materials chemistry, medicinal chemistry, and fluorine chemistry. All information is presented and classified clearly to be effective source for broad auditory of chemists. It will be interesting for scientists working in the field of inorganic and coordination chemistry. Fluorinated heterocycles are becoming increasingly important in many areas including the pharmaceutical industry, materials science and agriculture. The presence of fluorine can result in substantial functional changes in the biological as well as physicochemical properties of organic compounds. Incorporation of fluorine into drug molecules can greatly affect their physicochemical properties, such as bond strength, lipophilicity, bioavailability, conformation, electrostatic potential, dipole moment, pKa etc. as well as pharmacokinetic properties, such as tissue distribution, rate of metabolism and pharmacological properties, such as pharmacodynamics and toxicology.

Indian Journal of Chemistry

Author :
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Green Synthetic Approaches for Biologically Relevant Heterocycles

Author : Goutam Brahmachari
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Green Synthetic Approaches for Biologically Relevant Heterocycles reviews this significant group of organic compounds within the context of sustainable methods and processes. Each clearly structured chapter features in-depth coverage of various green protocols for the synthesis of a wide variety of bioactive heterocycles classified on the basis of ring-size and/or presence of heteratoms(s). Techniques covered include microwave heating, ultrasound, ionic liquids, solid phase, solvent-free, heterogeneous catalysis, and aqueous media, along with multi-component reaction strategies. This book also integrates advances in green chemistry research into industrial applications and process developments. Green Synthetic Approaches for Biologically Relevant Heterocycles is an essential resource on green chemistry technologies for academic researchers, R&D professionals, and students working in medicinal, organic, natural product, and agricultural chemistry. Includes global coverage of a wide variety of green synthetic techniques Features cutting-edge research in the field of bioactive heterocyclic compounds Focuses extensively on applications, with numerous examples of biologically relevant heterocycles

Heterocycles

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Journal of the Indian Chemical Society

Author : Indian Chemical Society
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Triple Helix Forming Oligonucleotides

Author : Claude Malvy
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Sequence-specific DNA binding ligands, amongst which triple helix forming oligonucleotides are the most efficient as yet, represent promising tools in a number of fields. One of their most promising applications is as antiviral tools: they can specifically target a viral gene, even if it is integrated into the host genome, and be used to specifically inactivate the viral gene or even destroy the cells harboring this gene. However, from science fiction to science there remains a gap; and we are at the moment on the threshold of this fascinating field. Triple Helix Forming Oligonucleotides considers the different aspects of the design and improvement, current or future, of these molecules and their structural analysis, as well as their applications, with special emphasis on the attempts to obtain biological effects of these potentially important tools. What emerges is that the current state of the research is encouraging, and that these molecules are already useful in some biotechnology applications.

Synthesis of Heterocycles Via Cycloadditions II

Author : Alfred Hassner
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The Development of Biologically Active beta turn Mimetics

Author : Andrew James Souers
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Journal of the Indian Chemical Society

Author : Indian Chemical Society, Calcutta
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Progress in Heterocyclic Chemistry

Author : H. Suschitzky
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Progress in Heterocyclic Chemistry, Volume 6, reviews critically the heterocyclic literature essentially published in 1993. The first two chapters are given over to reviews. The first review deals with the subject of the "halogen dance." The second review describes the application of selected "heterocycles as vehicles for synthesis." This type of review dealing mainly with five-membered ring transformations will prove useful to many readers. The remaining chapters describe advances in the heterocyclic field arranged according to ring-size, i.e., three-, four-, five-, six-, seven-, eight-membered rings, and larger rings. Numerous diagrams and a brief index will assist in locating areas of interest.