Paper
Cyclobutanes in Small‐Molecule Drug Candidates
Published Mar 9, 2022 · Marnix R. van der Kolk, Mathilde A. C. H. Janssen, F. Rutjes
Chemmedchem
62
Citations
1
Influential Citations
Abstract
Cyclobutanes are increasingly used in medicinal chemistry in the search for relevant biological properties. Important characteristics of the cyclobutane ring include its unique puckered structure, longer C−C bond lengths, increased C−C π‐character and relative chemical inertness for a highly strained carbocycle. This review will focus on contributions of cyclobutane rings in drug candidates to arrive at favorable properties. Cyclobutanes have been employed for improving multiple factors such as preventing cis/trans‐isomerization by replacing alkenes, replacing larger cyclic systems, increasing metabolic stability, directing key pharmacophore groups, inducing conformational restriction, reducing planarity, as aryl isostere and filling hydrophobic pockets.
Cyclobutanes contribute to favorable properties in small-molecule drug candidates by improving metabolic stability, preventing cis/trans-isomerization, directing key pharmacophore groups, and reducing planarity.
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