Plant obtained compounds that have recently undergone development include the anticancer agents, taxol and camptothecin, the Chinese, antimalarial, artemisinin drug and the Ayurvedic drug forskolin. These and lots of other examples serve for instance the sustained value of plant-derived secondary metabolites as useful compounds for drug development. Plant derived natural products have long been and can still be extremely important as sources of medicinal agents and models for the synthesis and semi- synthesis of novel substances for treating many diseases. Many of the medicinally important plant derived pharmaceuticals are essential in introducing the age of modern medicine and therapeutics and a few of this substance. Medicinal plants became the most objects of chemists, biochemists, and pharmaceutics. Their investigation plays a crucial role in discovering and developing new drugs that probably have more efficacy and no side actions like the latest drugs.