Synthesis and anticancer evaluation of thiazolyl-chalcones

Area of Science:

• Medicinal Chemistry
• Organic Synthesis
• Pharmacology

Background:

• Chalcones and thiazole derivatives are recognized for their diverse biological activities, including anticancer properties.
• The Claisen-Schmidt condensation is a versatile method for synthesizing α,β-unsaturated carbonyl compounds.

Purpose of the Study:

• To synthesize novel thiazolyl-chalcone derivatives.
• To evaluate the in vitro cytotoxic activity of synthesized compounds against various human cancer cell lines.
• To assess the in vivo antitumor efficacy of promising compounds in a mouse model.

Main Methods:

• Synthesis of 37 (E)-1-(4-methyl-2-arylaminothiazol-5-yl)-3-arylprop-2-en-1-ones via Claisen-Schmidt condensation.
• Characterization of synthesized compounds using standard analytical techniques.
• In vitro cytotoxicity evaluation using the MTT assay on BGC-823, PC-3, NCI-H460, and BEL-7402 cell lines.
• In vivo antitumor activity assessment in ICR mice bearing sarcoma 180 tumors.

Main Results:

• The synthesis yielded 37 target thiazolyl-chalcones.
• Compounds 5, 8, 26, 37, and 41 exhibited potent in vitro anticancer activity with IC50 values below 10 μM.
• Compounds 10 and 41 demonstrated moderate in vivo antitumor effects, achieving 22-25% tumor-weight inhibition in sarcoma 180-bearing mice.

Conclusions:

• The synthesized thiazolyl-chalcones represent a promising class of compounds for cancer therapy.
• Specific derivatives show significant potential for further development as anticancer agents, warranting further investigation.