Bioisosterism and Scaffold Hopping

Bioisosterism and Scaffold Hopping — Classical and non-classical bioisosteres for property optimization.

The field organises around several methodological axes: how the underlying objects are modelled, how they are measured, how they are connected to the rest of chemistry, and which empirical phenomena drive open questions. The references below anchor the topic in established treatments and current literature.

Foundations and core methods

A primary reference for this area is An Introduction to Medicinal Chemistry (Patrick, 2017), which lays out the core concepts that govern bioisosterism and scaffold hopping. The treatment frames the subject within the broader context of medicinal chemistry and motivates the conceptual vocabulary used throughout this page. The discussion here cites this work as a general anchor rather than for a specific claim, since the exact contribution claim is treated cautiously in line with the Charted sourcing policy.

A complementary perspective comes from The Organic Chemistry of Drug Design and Drug Action (Silverman and Holladay, 2014), which provides further background on the methods and results most relevant to bioisosterism and scaffold hopping. Together with the previous reference, it establishes the standard expectations for how practitioners approach the topic in current practice.

Open questions

Open methodological questions in bioisosterism and scaffold hopping include the transferability of the standard methods to harder regimes, the integration of newer measurement and modelling tools, and the connection to neighbouring subfields of medicinal chemistry. Future revisions of this page will deepen the treatment as more primary literature is curated.