Chemical and biological versatility of pyrazolo[3,4-d]pyrimidines: one scaffold, multiple modes of action

Plain language summary Pyrazolo[3,4-d]pyrimidines are chemical compounds possessing remarkable versatility and significance in both biological and chemical contexts. These compounds are composed of specific arrangements of atoms, forming a unique ring structure, which is able to form bonds in a similar way as purines do. In the realm of chemistry, pyrazolo[3,4-d]pyrimidines showcase impressive flexibility due to their ability to easily react with various molecules, opening avenues for the creation of novel compounds with diverse properties for potential applications in medicinal chemistry. In a biological context, pyrazolo[3,4-d]pyrimidines play a crucial role due to their interaction with proteins such as enzymes. In fact, these compounds can impact various biological processes, including cancer cell proliferation, oxidative stress and inflammation. This has led to investigations into their potential as therapeutic agents: by designing pyrazolo[3,4-d]pyrimidines with specific biological targets in mind, new drugs can be developed for the effective treatment of a range of medical conditions. Finally, novel administration tools (e.g., nanomaterials and functionalized liposomes) are being studied as effective ways to overcome the main unwanted characteristics of pyrazolo[3,4-d]pyrimidines (scarce solubility and off-target side effects), thereby increasing their efficacy and specificity toward cell targets. In conclusion, pyrazolo[3,4-d]pyrimidines are fascinating molecules with a dual role in chemistry and biology. Their adaptability in chemical reactions makes them valuable building blocks for designing new compounds with diverse applications. Additionally, their interaction with biological molecules holds promise for the development of innovative medicines. Ongoing research into the properties and behaviors of these compounds could lead to significant advancements in both scientific fields.