SEARCH Articles Figures Tables Five-Membered Heterocycles Furan, Pyrrole, and Thiophene Five-membered Heterocycles containing One Heteroatom Pyrrole, Furan and Thiophene Furan based heterocycles Furanes heterocyclic cores Heterocycles furan derivatives Heterocycles oxygen containing, furan Heterocyclic compounds furans Heterocyclic compounds, aromatic furans Oxygen, heterocyclic compounds furan