**3. Conclusion**

Summarizing the data obtained, we can conclude that condensed benzimidazole derivatives with π-electron redundancy are a new scaffold for searching antioxidant substances. The highest amount of compounds with high antioxidant activity was found in derivatives of 2-(hetaryl)-aroylmethyl-, and 9-dialkylaminoethyl-IMBI, with oxy- and dioxyphenyl substitutes especially.

The revealed compound enoxifol from the 9-dialkylaminoethyl-IMBI series exhibits pronounced antioxidant, hepatoprotective, antihypoxic, cerebroprotective, nootropic, stress-protective, neuropsychotropic, actoprotective, cardioprotective, antithrombogenic and hemorheological properties. Pharmacokinetic parameters of enoxifol were established, and general and specific toxicities were studied. All mentioned above allows us to consider enoxifol to be the basis of a new effective drug.

*Antioxidants*
