Pharmaceutical Process Chemistry

Covering the whole area of process chemistry in the pharmaceutical industry, this monograph provides the essential knowledge on the basic chemistry needed for future development and key industrial techniques, as well as morphology, engineering and regulatory compliances. Application-oriented and well structured, the authors include recent examples of excellent industrial production of active pharmaceutical ingredients.

Providing guidance for chemists and other scientists entering pharmaceutical discovery and development, this up-to-the-minute reference presents contributions from an international group of nearly 50 renowned researchers—offering a solid grounding in synthetic and physical organic chemistry, and clarifying the roles of various specialties in the development of new drugs. Featuring over 1000 references, tables, and illustrations, Process Chemistry in the Pharmaceutical Industry is sure to find its way to the bookshelves of organic, physical, analytical, process, and medicinal chemists and biochemists; pharmacists; and upper-level undergraduate and graduate students in these disciplines.

There is a need to explain that generic versions of a drug may not be manufactured by the same process as brand-name drugs and that the different processes may have dramatically different environmental impacts. Two global forces are at odds today—the push for "greener" processes and the push for lower drug prices. This book brings this conflict into sharp focus by discussing in detail the published process chemistry for top-selling small molecule drugs. Providing insights about process route selection, choice of reagents, and reaction conditions, Pharmaceutical Process Chemistry for Synthesis guides process chemists in identifying best processes for manufacturing these blockbuster drugs as they lose patent protection. Further, it highlights the strategies and methodology that might be useful for expediting the process research and development of the blockbusters of the future. Written from a refreshingly objective perspective, this book is essential for process chemists who need to devise practical syntheses for increasingly complex drugs in a constantly decreasing time frame.

As pharmaceutical companies strive to develop safer medicines at a lower cost, they must keep pace with the rapid growth of technology and research methodologies. Defying the misconception of process chemistry as mere scale-up work, Process Chemistry in the Pharmaceutical Industry, Vol. 2: Challenges in an Ever Changing Climate explores novel applications of synthetic, physical, and analytical chemistry in drug discovery and development. It offers an accurate depiction of the most up-to-date process research and development methods applied to synthesis, clinical trials, and commercializing drug candidates. The second installment in this progressive series, this volumereviews the latest breakthroughs to advance process chemistry, including asymmetric synthesis, crystallization, morphology, enzymatic intervention, green chemistry, macromolecules (monoclonal antibodies, biological molecules, polymers), enantioselectivity, organometallic chemistry, process analytical tools, chemical engineering controls, regulatory compliance, and outsourcing/globalization. It explores new approaches to synthetic processes, examines the latest safety methods and experiment design, and suggests realistic solutions to problems encountered in manufacturing and process development. Significant topics include atom economy, ease of synthesis, instrumentation, automization, quality control, cost considerations, green practices, and future trends. Jointly edited by the founder/president of Delphian Pharmaceuticals and the director of Chemical R&D at Pfizer, this book brings together contributions byreputed scientists, technologists, engineers, and professors from leading academic institutions, such as the Imperial College, UK, the University of Tokyo, ETH, Switzerland, the International University at Bermen, Germany, and the University of Connecticut, USA, and from principal pharmaceutical companies that include Merck, Bristol Myers Squibb, Pfizer, Novartis, Eli Lilly, Astrazeneca and DSM.

Pharmaceutical process research and development is an exacting, multidisciplinary effort but a somewhat neglected discipline in the chemical curriculum. This book presents an overview of the many facets of process development and how recent advances in synthetic organic chemistry, process technology and chemical engineering have impacted on the manufacture of pharmaceuticals. In 15 concise chapters the book covers such diverse subjects as route selection and economics, the interface with medicinal chemistry, the impact of green chemistry, safety, the crucial role of physical organic measurements in gaining a deeper understanding of chemical behaviour, the role of the analyst, new tools and innovations in reactor design, purification and separation, solid state chemistry and its role in formulation. The book ends with an assessment of future trends and challenges. The book provides a valuable overview of: both early and late stage chemical development, how safe and scaleable synthetic routes are designed, selected and developed, the importance of the chemical engineering, analytical and manufacturing interfaces, the key enabling technologies, including catalysis and biocatalysis, the importance of the green chemical perspective and solid form issues. The book, written and edited by experts in the field, is a contemporary, holistic treatise, with a logical sequence for process development and mini-case histories within the chapters to bring alive different aspects of the process. It is completely pharmaceutical themed, encompassing all essential aspects, from route and reagent selection to manufacture of the active compound. The book is aimed at both graduates and postgraduates interested in a career in the pharmaceutical industry. It informs them about the breadth of the work carried out in chemical research and development departments, and gives them a feel for the challenges involved in the job. The book is also of value to academics who often understand the drug discovery arena, but have far less appreciation of the drug development area, and are thus unable to advise their students about the relative merits of careers in chemical development versus discovery.

'Pharmaceutical Process Development' is aimed at both graduates and postgraduates interested in a career in the pharmaceutical industry and informs them about the breadth of the work carried out in chemical research and development departments.

This text discusses the functions of Process R&D (research and development), which involves the method of transforming a research synthetic procedure into a plant process and the key aspects of a synthesis that must be considered when scaling up a process. Topics consist of: basic principles of chemical development; techniques for the minimization of by-product impurities; criteria for cost-effective synthesis of enantiopure compounds by resolutions; asymmetric synthesis, and "chiral pool" strategy; synthesis for labeling substances with hydrogen or carbon isotopes; and last, licensing.