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Contract number
075-15-2022-1128
Time span of the project
2022-2024
General information
Name of the project: 

Molecular design of redox-active heterocyclic systems - new antitumor agents
Goals and objectives

Goals of project:

Developing a new methodology for the design of redox-active molecular systems, determining the correlation between their structure and properties, establishing the mechanisms of the antitumor action of such systems and creating highly efficient antitumor agents.

Project objective:

  1. Creating a world-class interdisciplinary laboratory that will feature highly-qualified professionals in the field of organic, elemento-organic chemistry, biochemistry, biology and pharmacology. The laboratory will be aimed at solving problems of the molecular design of new highly-efficient antitumor agents.
  2. Developing methods of the synthesis of new types of redox-active molecular systems that will include as a basis sterically hindered phenols that have a phosphorus-containing functional group that is responsible for the stability and redox-activity of generated methylene quinone, as well as an aza-heterocyclic substituents as a pH-sensitive component. Studying their physical and chemical properties (reduction-oxidation potential, photosensitivity etc.).
  3. Developing methods for synthesizing pH-sensitive phosphorus-containing sterically hindered phenols (SHPs) that have additional fragments in the molecules, particularly, derivatives of benzofuroxan, isatin, dibenzo xanthene («hybrid» SHPs) capable of interacting with DNA as well as «vector» groups providing selective binding to DNA and (or) pathological proteins of a tumor cell; studying their physical and chemical properties (redox potential, photosensitivity etc.)
  4. The research of the potential antitumor activity of the produced compounds will include: a study of the cytotoxic profile on a panel of normal and tumor cell lines and determining the selectivity of their action; determining the mechanisms of cytotoxic action on the basis of an understanding of the pathological processes in oncogenesis; conducting an analysis of the «structure-activity» correlation to determine leading compounds for the study of antitumor activity in vivo using experimental model animals with grafted tumor. Moreover, on the basis of the accumulated data we will optimize the structures of synthesized compounds to achieve the highest selectivity and biological effect. Since many antitumor agents whose action is based on interaction with DNA (antineoplastic agents, cytostatics) also demonstrate antimicrobial capabilities, we will additionally study the antibacterial and antifungal activity of the produced compounds, including against resistant strains of microorganisms that pose serious danger to people all over the world.
Research directions: 

Chemistry and chemical technology

The practical value of the study

Planned project results:

  1. We will create a world-class interdisciplinary laboratory that will feature highly-qualified professionals in various fields of studies – organic, elemento-organic chemistry, biochemistry, biology and molecular biology. Uniting professionals in various domains within one structure under the supervision of Prof. Igor Alabugin will significantly improve the efficiency of their cooperation, it will facilitate experience and knowledge exchange and will provide a higher level of conducted research and will allow to significantly improve the productivity and publication activity of the laboratory.
  2. An original approach will be created for the synthesis of new types of redox-active molecular systems that will have sterically hindered phenols having a phosphorus-containing functional group in their structure that is responsible for the redox-activirty of generated methylene quinone as well as aza-heterocyclic substituent with terminal primary amino-groups as a pH-sensitive component. The proposed approach is novel and relies on a new reaction of phosphorylated methylene quinones with heterocyclic C-nucleophiles discovered in the group that is new and does not have counterparts in the world. A targeted modification of amino groups of the produced compounds will be performed using aromatic aldehydes and (or) ketones, (tio) isocyanates, chloranhydrides of acids and amino acids as reagents. As a result we will produce a wide range of SHPs that will contain heterocyclic fragments modified with various functional groups - compounds demonstrating high antitumor activity.
  3. The laboratory will develop methods of the synthesis of new «hybrid» рН-sensitive phosphorus-containing SHPs that contain a fragment of benzofuroxan as an additional pharmacophoric group. The proposed approach to the synthesis of these compounds is based on nucleophilic substituent of the chlorine atom in nitrochlor benzofuroxans with heteroaromatic and aromatic diamines with the formation of amino benzofuroxans and subsequent interaction of produced intermediate products with phospholated methylene quinones. In the course of this work we will also develop methods of the synthesis of functionalized aminobenzofuroxans based on the interaction of nitroclorbenzofuroxan with diamines and functionalized amines that include tetraalkylammonium and fragments tri(aryl)alkyl phosphonium fragments as well as heterocyclic substituent. We will produce a wide range of new derivatives of aminobenzofuroxan with onium substituents, tertiary amino groups as well as heterocyclic substituents. Our researchers will synthesize novel «hybrid» phosphorus-containing SHPs containing a gragment of nitrobenzofuroxan bound to a fragment of SHP via a (hetero)aromatic «linker».

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