Perera,K. Sarath D2025-02-062025-02-062022-06https://dr.ichemc.ac.lk/handle/123456789/112Page 63-66Heterocycles are cyclic structures with at least one atom other than C and H. Most common heteroatoms are N, O and S. A large portion of natural products are heterocyclic compounds and some are being utilized as pharmaceuticals, agrochemicals etc.enArticle