Opioids such as morphine, codeine, and oxycodone are extracts or analogs isolated from a single source: the opium poppy. For a long time, it was believed to be nature's only source of opioids. But it now appears that biological diversity has evolved an alternative source of opioid compounds-those derived from the plant Mitragyna speciosa. This plan

The Isoquinoline Alkaloids: Chemistry and Pharmacology presents an overview of the chemistry, biogenesis, spectroscopy, and pharmacology of the isoquinoline alkaloids. This book examines the significant and interesting aspects of alkaloids. Organized into 32 chapters, this book starts with a discussion of the biogenesis of the isoquinolines and the various pharmacological effects of simple tetrahydroisoquinolines that have stimulant and convulsive properties. This text then explores the infrared absorptions, with emphasis on wavelength and frequency. Other chapters include topics on synthesis, degradation, reactions, absolute configuration, as well as on ultraviolet and nuclear magnetic resonance spectroscopy. This book further explores the various methods available for the preparation of simple tetrahydroisoquinolines, including the Bischler–Napieralski, Pictet–Spengler, and phenolic cyclization, as well as the Friedel–Crafts acylation. The last chapter deals with ancistrocladine, which is the first isoquinoline alkaloid found to possess a methyl group. Biochemists and biophysicists will find this book useful.

Alkaloids are a large group of structurally complex natural products displaying a wide range of biological activities. The purpose of Alkaloids: A Treasury of Poisons and Medicines is to classify, for the first time, the alkaloids isolated from the natural sources until now. The book classifies all of the alkaloids by their biosynthetic origins. Of interest to the organic chemistry and medicinal chemistry communities involved in drug discovery and development, this book describes many alkaloids isolated from the medicinal plants, including those used in Japanese Kampo medicine. - Classifies and lists alkaloids from natural sources - Occurrence and biosynthetic pathways of alkaloids - Indicates key uses and bioactivity of alkaloids

Here is an in-depth examination of the opium poppy--the first medicinal plant known to mankind. In Opium Poppy: Botany, Chemistry, and Pharmacology, author L. D. Kapoor provides readers with a comprehensive resource on poppy production from seed to alkaloid. He explores the opium poppy?s origin, distribution, chemistry, and uses and abuses from ancient civilizations through the present day. He covers plant and seed production and crop improvement and explores in detail the chemical and pharmaceutical by-products of the opium poppy. The book begins with a historical overview of the origin and use of opium poppy in ancient civilizations such as Greece, Egypt, and Mesopotamia. Chapters that follow contain detailed information on: botanical studies cytogenics and plant breeding agronomy, including insect and pest control measures physiological and anatomical studies chemical and pharmacological aspects of opium alkaloids biosynthesis and physiology of opium alkaloids the occurrence and role of alkaloids in plants the evaluation of analgesic actions of morphine in various pain models in experimental animals Opium Poppy: Botany, Chemistry, and Pharmacology is a useful reference for professionals and students of pharmacy, botany, chemistry, medicine, and pharmacology who need a better overall understanding of this ancient plant and its (potential) modern usage.

Isoquinolines form one of the largest groups of plant alkaloids and they in clude a number of valuable clinical agents such as codeine, morphine, eme tine and tubocurarine. Research into different aspects of isoquinolines con tinues in profusion, attracting the talents of botanists, chemists, bioche mists, analysts, pharmacists and pharmacologists. Many of these aspects are of an interdisciplinary nature, and in April 1984, The Phytochemical Society of Europe arranged a 3-day symposium on The Chemistry and Bi ology of Isoquinoline Alkaloids in order to provide a forum for scientists of differing disciplines who are united by a common interest in this one class of natural product. Each chapter in this volume is based on a lecture given at this symposium. Attempts have been made to make the aims and objectives, experimental findings and conclusions reached, intelligible to scientists of differing backgrounds. The introductory chapter, which is mainly based on a historical discus sion, stresses that plants containing isoquinolines have proved to be both a boon and a curse to mankind. The Opium Poppy, Papaver somniferum, produces the medicinally used alkaloids morphine, codeine, noscapine and papaverine whilst it also continues to provide drugs of abuse, particularly morphine and its readily prepared O,O-diacetyl derivative, heroin. Numer ous other alkaloids have been isolated from other members of the Papaver acea, and a knowledge of their presence and distribution within the various species has proved a useful adjunct to systematic botanical studies.

This book details several important medicinal plants, their occurrence, plant compounds and their chemical structures, and pharmacological properties against various human diseases. It also gives information on isolation and structural elucidation of phytocompounds, bio-assays, metabolomic studies, and therapeutical applications of plant compounds.