1.1.Introduction to natural products and bioactive compounds Organic chemistry is an art executed science.The art of synthesis and isolation of natural products and bioactive compounds makes it one of the most interesting and finest areas of modern chemistry. As an eminent scientist says,If we wish to catch with nature,we shall need to use the same methods as she does,and I can foresee a time in which physiological chemistry will not only make greater use of natural enzymes but will actually resort to creating synthetic ones- Emily Fischer,1902.These words reflected an extensive chemical synthesis and isolation of natural products and bioactive compounds for the welfare of human kind in the future thereafter The key role played by plant-based systems in the healthcare of different cultures has been extensively documented,and the World Health Organization(WHO)has estimated that approximately 65-80% of the world's population rely mainly on plant-derived traditional medicines for their primary health care.1 Most of these natural products are secondary plant metabolites.Keeping this in view,we felt an urge to synthesize some natural products and test their bioactivity and also planned for the isolation of some bioactive natural compounds. Natural products have played a key role in health care and prevention of diseases for the past thousands of years.Several ancient civilizations,such as Indians,Chinese,and North Africans have provided written evidence for the use of natural sources for curing1.1. Introduction to natural products and bioactive compounds Organic chemistry is an art executed science. The art of synthesis and isolation of natural products and bioactive compounds makes it one of the most interesting and finest areas of modern chemistry. As an eminent scientist says, If we wish to catch with nature, we shall need to use the same methods as she does, and I can foresee a time in which physiological chemistry will not only make greater use of natural enzymes but will actually resort to creating synthetic ones– Emily Fischer, 1902. These words reflected an extensive chemical synthesis and isolation of natural products and bioactive compounds for the welfare of human kind in the future thereafter. The key role played by plant-based systems in the healthcare of different cultures has been extensively documented, and the World Health Organization (WHO) has estimated that approximately 65-80% of the world’s population rely mainly on plant-derived traditional medicines for their primary health care.1 Most of these natural products are secondary plant metabolites. Keeping this in view, we felt an urge to synthesize some natural products and test their bioactivity and also planned for the isolation of some bioactive natural compounds. Natural products have played a key role in health care and prevention of diseases for the past thousands of years. Several ancient civilizations, such as Indians, Chinese, and North Africans have provided written evidence for the use of natural sources for curing