Aim:
To describe structure activity relationship of heterocyclic derivatives with multi-targeted anticancer activity.
Objectives:
With the following goals in mind, this review tries to describe significant recent advances in the medicinal chemistry of heterocycle-based compounds: (1) To shed light on recent literature focused on heterocyclic derivatives' anticancer potential; (2) To discuss recent advances in the medicinal chemistry of heterocyclic derivatives, as well as their biological implications for cancer eradication; (3) To summarise the comprehensive correlation of structure activity relationship (SAR) with pharmacological outcomes in cancer therapy.
Background:
Cancer remains one of the major serious health issues devastating the world today. Cancer is a complex disease in which improperly altered cells proliferate at an uncontrolled, rapid, and severe rate. Variables such as poor dietary habits, high stress, age, and smoking, can all contribute to the development of cancer. Cancer can affect almost any organ or tissue, although the brain, breast, liver, and colon are the most frequently affected organs. From several years, surgical operations and irradiation are in use along with chemotherapy as a primary treatment of cancer but still effective treatment of cancer remains a huge challenge. Chemotherapy is now one of the most effective strategies to eradicate cancer, although it has been shown to have a number of cytotoxic and unfavourable effects on normal cells. Despite all of these cancer treatments, there are several other targets for anticancer drugs. Cancer can be effectively eradicated by focusing on these targets, which include both cell-specific and receptor-specific targets such as tyrosine kinase receptors (TKIs). Heterocyclic scaffolds also have a variety of applications in drug development and are a common moiety in the pharmaceutical, agrochemical, and textile industries.
Methods:
The association between structural activity relationship data of many powerful compounds and their anticancer potential in vitro and in vivo has been studied. SAR of powerful heterocyclic compounds can also be generated using molecular docking simulations, as reported vastly in literature.
Conclusions:
Heterocycles have a wide range of applications, from natural compounds to synthesised derivatives with powerful anticancer properties. To avoid cytotoxicity or unfavourable effects on normal mammalian cells due to a lack of selectivity towards the target site, as well as to reduce the occurrence of drug resistance, safer anticancer lead compounds with higher potency and lower cytotoxicity are needed. This review emphasizes on design and development of heterocyclic lead compounds with promising anticancer potential.
Alzheimer’s disease (AD) remains one of the major neurodegenerative diseases overwhelming the world today. Alzheimer’s is the most complicated as well as perplexing disease encountering serious global health issues. Alzheimer’s disease is well characterized as a general cause of dementia, which includes issues with memory, language, problem-solving, and other cognitive behaviours, such as disabled perception as well as trouble talking due to degeneration of neurons. According to the latest report, there are about 44 million individuals who are currently suffering from dementia, which has been prophesied to extensively grow up to 3-fold by 2050. Alzheimer’s disease is usually triggered by numerous associated factors, including depleted amount of acetylcholine (ACh), excessive aggregation of β-amyloid peptide (Aβ), tau hyperphosphorylation with neurofibrillary tangle formation as well as deposition of feeble plaques in a specific portion of the brain (hippocampus and cortex). Besides these superior factors, sometimes AD can be induced or become complex due to several reasons, such as inflammatory mechanisms and oxidative stress. Furthermore, heterocyclic scaffolds comprise assorted implications in the drug design and development process. Heterocycles have also elicited their evolving role as core scaffolds in numerous synthetic derivatives with potent anti-Alzheimer’s potential. There are only limited drugs that are present in the market to treat Alzheimer’s disease in an efficacious manner. Hence, the identification, design, and development of new anti-Alzheimer’s drugs is therefore an emerging need to eradicate complex clinical indications associated with Alzheimer’s disease. This review aims to summarize various recent advancements in the medicinal chemistry of heterocycle-based compounds with the following objectives: (1) To represent inclusive literature reports describing the anti-Alzheimer’s potential of heterocyclic derivatives; (2) To cast light on recent advancements in the medicinal chemistry of heterocyclic compounds endowed with their therapeutic potential against Alzheimer’s disease; (3) To summarize the comprehensive correlation of structure-activity relationship (SAR) with the pharmacological responses, including in silico and mechanistic studies to provide ideas related to design and development of lead molecules.
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