Recently, natural products chemistry has undergone explosive growth due to advances in isolation techniques, synthetic and biosynthetic approaches as well as spectroscopic and chromatographic methods. (more…)

The classification of natural products may follow the four schemes below:

(1) Classification based on the molecular skeletal structure: Open-chain aliphatic, alicyclic and cycloaparaffinic, aromatic, benzenoid and heterocyclic.

(2) Classification based on physiological activity: The interest in natural products is frequently initiated by attempts to isolate and clarify a physiologically active principle of plant or animal origin. (more…)