Abstract
Oxetanes are used in drug discovery to enable physicochemical and metabolic property enhancement for the structures to which they are grafted. An imide C═O to oxetane swap on thalidomide and lenalidomide templates provides analogs with similar physicochemical and in vitro properties of the parent drugs, with an important exception: oxetane analog 2 displays a clear differentiation with respect to human plasma stability. The prospect of limiting in vivo stability/metabolism, blocking in vivo racemization, and potentially altering teratogenicity is appealing.
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