主题词：Synthesis and Characterization of Heterocyclic Compounds; Synthesis and Reactions of Organic Compounds; Synthesis and biological activity; Synthesis and Biological Evaluation; Synthesis and Reactivity of Sulfur-Containing Compounds; Chemical Reaction Mechanisms; Synthesis of heterocyclic compounds; Synthesis and Reactivity of Heterocycles; Structural and Chemical Analysis of Organic and Inorganic Compounds; Organic Chemistry Cycloaddition Reactions; Synthesis of Organic Compounds; Fluorine in Organic Chemistry; Phenothiazines and Benzothiazines Synthesis and Activities; Chemical synthesis and pharmacological studies; Chemical Synthesis and Analysis; Inorganic and Organometallic Chemistry; Chemical Synthesis and Reactions; Multicomponent Synthesis of Heterocycles; Synthesis and Characterization of Pyrroles; Quinazolinone synthesis and applications; Synthesis and pharmacology of benzodiazepine derivatives; Asymmetric Synthesis and Catalysis; Porphyrin and Phthalocyanine Chemistry; Chemical Reactions and Mechanisms; Analytical Chemistry and Chromatography