Exploring the multifunctional potential of designed benzothiazole hydrazones.

Area of Science:

• Medicinal Chemistry
• Pharmacology
• Organic Synthesis

Background:

• Oxidative stress contributes to multifactorial diseases.
• Multifunctional compounds offer innovative therapeutic strategies for complex diseases.

Purpose of the Study:

• Synthesize a library of six benzothiazole derivatives with hydrazonic spacers.
• Evaluate their multifunctional properties: antioxidant, UV-filtering, antiproliferative, and anti-inflammatory activities.

Main Methods:

• Structure-Activity Relationship (SAR) study.
• Antioxidant assays.
• UV-filtering assessments.
• Antiproliferative assays against melanoma cells.
• Inhibition assays against tyrosinase and 5-lipoxygenase (5-LO).

Main Results:

• Hydrazone linker with specific hydroxyl/methoxyl substitutions enhances multifunctionality.
• Compounds BZTidr10-12 exhibit antitumor activity via tyrosinase inhibition.
• All synthesized compounds are direct inhibitors of 5-lipoxygenase (5-LO).
• Compound BZTidr12 shows potent 5-LO inhibition (IC50 = 0.03 µM).

Conclusions:

• The designed benzothiazole derivatives possess significant multifunctional therapeutic potential.
• Specific structural features, including the hydrazone linker and hydroxyl/methoxyl groups, are crucial for multifunctionality.
• Compound BZTidr12 is a highly promising candidate for further investigation as a 5-LO inhibitor.