Recent advance in macrocyclic CDK inhibitors
Jiamin Zheng1, Zhisen Zhang1, Jinxin Liu2
1Department of Medicinal Chemistry, Insilico Medicine Shanghai Ltd., Shanghai, China.
None:
Cyclin-dependent kinases (CDKs) are central regulators of the cell cycle progression and transcription, making them attractive targets especially in oncology. The clinical success of CDK4/6 inhibitors in hormone receptor-positive (HR+) and HER2-negative (HER2-) breast cancer has highlighted the therapeutic potential of CDK inhibition, along with ongoing clinical evaluation of other CDK-targeted agents. Despite the progress, challenges still remain due to off-target toxicity and the emergence of resistance. Recently, macrocycle-based drug design has gained recognition for its ability to enhance the kinase inhibitory activities and selectivity, improve drug-like properties, and potentially overcome resistance. This review summarizes recent advances (2015-2025) in macrocyclization strategies for CDK inhibitors, tracing the structural modification process from the acyclic scaffolds and highlighting their potential to address key limitations of current therapies.
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