We deal with structural aspects of bioactive compounds and elucidation of their mode of action. In most cases this involves investigating the interaction of small molecules with their biopolymeric receptors. The recent dramatic advancement in isolation, purification and microspectroscopic methods has made it possible for chemists to become involved in such studies on a molecular structural basis Natural Products chemist Professor Koji nakanishi8 In most cases this involves investigating the interaction of small molecules with their biopolymeric receptors. The recent dramatic advancement in isolation, purification and microspectroscopic methods has made it possible for chemists to become involved in such studies on a molecular structural basis Natural Products Chemist : Professor Koji Nakanishi We deal with structural aspects of bioactive compounds and elucidation of their mode of action