The invention relates to siliconphthalocyanine compounds containing pyridine groups with anti-cancer (cancer-therapeutic) and antioxidant effects, which exhibit activity in cancer cells that show resistance to metal-containing compounds, have a broader activity spectrum compared to metal-containing compounds, possess lower toxicity and reduced side effects compared to metal-containing compounds, and can be used as potential anti-tumor drugs, as well as to the methods of synthesis of these compounds.