Textbook in PDF format Bioactive Three-Membered Heterocycles provides detailed information on the green synthesis of the structurally diverse pharmaceutically active three-membered heterocycles. It covers both synthesis and biological aspects and highlights the role of three-membered heterocycles in drugs and drug designing. It also includes naturally occurring bioactive three-membered heterocycles. State-of-the-art guide on 3-membered heterocycles. Indispensable to medicinal chemists. Some commercially available and preclinical drug molecules with three-membered N- or O-heterocylic skeletons Photo-irradiated synthesis of three-membered heterocycles Synthesis of three-membered heterocycles under electrolysis Ultrasound-assisted synthesis of three-membered heterocycles Organocatalyzed synthesis of three-membered heterocycles Solvent-free synthesis of three-membered heterocycles Green synthesis of bioactive diaziridines Green synthesis of bioactive oxaziridines Applications of three-membered heterocycles to construct higher-membered heterocycles