Secondary Metabolites:An Introduction to Natural Products Chemistry Natural products generally refer to secondary metabolites Small molecules that are HO essential to the growth CO2H and development of the producing organism CH Not classified by structureHo H OH H OH Over 300,000 secondary Morphine Prostaglandin E1 metabolites exist H3C OH OH H3C、 CH3 OH N(CH3)2 CH3 CH3 OCH3 CH3 _oh CH3 Erythromycin A BenzylpenicillinNatural products generally refer to secondary metabolites ▪ Small molecules that are essential to the growth and development of the producing organism ▪ Not classified by structure ▪ Over 300,000 secondary metabolites exist Secondary Metabolites: An Introduction to Natural Products Chemistry