Calix[4]API-s: fully functionalized calix[4]arene-based facial active pharmaceutical ingredients

Area of Science:

• Medicinal Chemistry
• Supramolecular Chemistry

Background:

• Calix[4]arenes are versatile macrocyclic compounds with tunable properties.
• Functionalized calix[4]arenes can serve as scaffolds for developing novel bioactive molecules.

Purpose of the Study:

• To review fully functionalized facial calix[4]arene-based symmetrical and conical cyclic tetramers.
• To highlight their significant anticancer and anti-infective activities.

Main Methods:

• Literature review of 25 calix[4]arene derivatives.
• Analysis of structure-activity relationships for anticancer and anti-infective properties.

Main Results:

• Identified 25 calix[4]arene-based cyclic tetramers with significant biological activities.
• Demonstrated comparable efficacy to established therapeutic agents.
• Highlighted the role of the calixarene scaffold in replicating phenolic units.

Conclusions:

• Facial, conical calix[4]arene-based active pharmaceutical ingredients (calix[4]APIs) are effective bioactive agents.
• Multivalency and synergistic effects of replicated units contribute to their efficacy.
• These compounds represent promising candidates for drug development in oncology and infectious diseases.