Saturated Bioisosteres of para-substituted Benzenes
The residue of benzene comprises to the structure of more than 500 FDA-approved drugs. In 2012, Stepan and coworkers showed that bicyclo[1.1.1]pentane skeleton could act as a saturated "nonclassical phenyl ring bioisostere" in the design of a γ-secretase inhibitor. Since then, the core of bicyclo[1.1.1]pentane is often used in the design of analogues of natural compounds, peptide studies, medicinal chemistry, and supramolecular chemistry. Herein we have designed and synthesized a library of saturated mimics of the para-benzene ring for drug design.