药物是指预防、诊断和治疗疾病的物质。近年又将强身延寿与计划生育的物质也归于药物。所谓现代药物设计,主要指以下四方面:其一是探索人类的生命现象,试图从分子水平上研究疾病与衰老的发生,发展与结局,从而有针对性地设计特异性高、副作用小的诊断和防治药物;其二是阐 Drugs are substances that prevent, diagnose and treat diseases. In recent years, physical extension of life and family planning will be attributed to drugs. The so-called modern drug design, mainly refers to the following four aspects: First, to explore the phenomenon of human life, trying to study the molecular level of the occurrence and development of disease and aging, and thus targeted specifically designed to diagnose high specificity and small side effects And prevention and treatment of drugs; the second is elucidation