主题词：Synthesis and biological activity; Multicomponent Synthesis of Heterocycles; Synthesis and Characterization of Heterocyclic Compounds; Chemical Synthesis and Reactions; Chemical Synthesis and Analysis; Synthesis and Biological Evaluation; Inorganic and Organometallic Chemistry; Microwave-Assisted Synthesis and Applications; Synthesis and Reactions of Organic Compounds; Asymmetric Synthesis and Catalysis; Asymmetric Hydrogenation and Catalysis; Chemical Reaction Mechanisms; Synthesis of Organic Compounds; Synthesis of heterocyclic compounds; Synthetic Organic Chemistry Methods; Carbohydrate Chemistry and Synthesis; Analytical Chemistry and Chromatography; Catalytic Cross-Coupling Reactions; Sulfur-Based Synthesis Techniques; Click Chemistry and Applications; Synthesis and Reactivity of Sulfur-Containing Compounds; Quinazolinone synthesis and applications; Organic Chemistry Cycloaddition Reactions; Oxidative Organic Chemistry Reactions; Catalytic C–H Functionalization Methods