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What is Medicinal Chemistry (section 8)

  Section 8: How Scientists Identify Drug Structures In medicinal chemistry, after a compound is discovered or isolated from natural sources, one of the most important tasks is to identify its chemical structure . The chemical structure tells us what atoms are in the compound, how they are bonded, and how the molecule is arranged in space. Knowing the exact structure is critical because: It helps understand how the drug works (mechanism of action) It is necessary for making copies (synthesis) It ensures purity and avoids unwanted side effects In this section, we will explore the tools and techniques used by scientists to find out what a drug looks like at the molecular level. 1. Why Structure Identification is Important Before using a drug in patients or manufacturing it: Scientists must confirm the exact chemical structure. Small changes in structure can change how the drug behaves in the body. Regulatory bodies (like FDA or CDSCO) ...

What is Medicinal Chemistry (section 7)

Section 7: Role of Natural Products in Drug Discovery Natural products are chemical compounds that come from living organisms — plants, animals, microbes, and marine organisms. For centuries, humans have used natural substances to treat diseases. Even today, natural products play a major role in drug discovery and development. In this section, you will learn how natural substances have been used in the past, how they are still important in modern drug discovery, and the advantages and challenges of using them. 1. What are Natural Products? Natural products are organic molecules made by living organisms. They are found in: Plants – alkaloids, flavonoids, terpenoids Microorganisms – antibiotics like penicillin, streptomycin Marine organisms – anticancer agents from sea sponges Animals – toxins, hormones Natural products can be used directly as medicines, or they can serve as templates (starting points) for designing new drugs. 2. Historical Impor...