主题词：Synthesis and Reactions of Organic Compounds; Synthesis and Characterization of Heterocyclic Compounds; Synthesis and Biological Evaluation; Chemical synthesis and alkaloids; Asymmetric Synthesis and Catalysis; Synthesis and biological activity; Chemical Synthesis and Analysis; Synthesis of heterocyclic compounds; Synthetic Organic Chemistry Methods; Organic Chemistry Cycloaddition Reactions; Synthesis and Reactivity of Heterocycles; Synthesis of Organic Compounds; Fluorine in Organic Chemistry; Chemical Reaction Mechanisms; Synthesis and Catalytic Reactions; Oxidative Organic Chemistry Reactions; Synthesis and Reactivity of Sulfur-Containing Compounds; Chemical Synthesis and Reactions; Multicomponent Synthesis of Heterocycles; Carbohydrate Chemistry and Synthesis; Phenothiazines and Benzothiazines Synthesis and Activities; Synthesis and pharmacology of benzodiazepine derivatives; Alkaloids: synthesis and pharmacology; Cyclopropane Reaction Mechanisms; Synthesis and Biological Activity