ABSTRACT
Two series of biscoumarin (1-3) and dihydropyran (4-12) derivatives were successfully synthesized as new antitumor and antibacterial agents. The molecular structures of four representative compounds 2, 4, 7 and 10 were confirmed by single crystal X-ray diffraction study. The synthesized compounds (1-12) were evaluated for their antitumor activities against human intestinal epithelial adenocarcinoma cell line (HuTu80), mammary adenocarcinoma cell line (4T1) and pancreatic cancer cell line (PANC1) and antibacterial activities against one drug-sensitive Staphylococcus aureus (S. aureus ATCC 29213) strain and three MRSA strains (MRSA XJ 75302, Mu50, USA 300 LAC). The further mechanism study demonstrated that the most potent compound 1 could obviously inhibit the proliferation of cancer cells via the mechanism to induce apoptosis.
Subject(s)
Apoptosis/drug effects , Coumarins/chemical synthesis , Coumarins/pharmacology , Pyrans/chemical synthesis , Pyrans/pharmacology , Staphylococcus aureus/drug effects , Anti-Bacterial Agents/chemical synthesis , Anti-Bacterial Agents/chemistry , Anti-Bacterial Agents/pharmacology , Antineoplastic Agents/chemical synthesis , Antineoplastic Agents/chemistry , Antineoplastic Agents/pharmacology , Carboplatin/chemical synthesis , Carboplatin/chemistry , Carboplatin/pharmacology , Cell Line, Tumor , Cell Proliferation/drug effects , Coumarins/chemistry , Crystallography, X-Ray , Humans , Inhibitory Concentration 50 , Microbial Sensitivity Tests , Models, Molecular , Pyrans/chemistryABSTRACT
A novel series of biscoumarin (1-4) and dihydropyran (5-13) derivatives were synthesized via a one-pot multicomponent condensation reaction and evaluated for antibacterial and antitumor activity in vitro. The X-ray crystal structure analysis of four representative compounds, 3, 7, 9 and 11, confirmed the structures of these compounds. Compounds 1-4 showed the most potent antitumor activity among the total 13 derivatives; especially for compounds 1 and 2, they also emerged as promising antibacterial members with better antibacterial activity. In addition, the results of density functional theory (DFT) showed that compared with compounds 3 and 4, biscoumarins 1 and 2 had lower intramolecular hydrogen bonds (HB) energy in their structures.