Synthesis of Azaspirocycles and their Evaluation in Drug Discovery

Make it spiro! Readily synthesized heteroatom-substituted spiro[3.3]heptanes generally show higher aqueous solubility than their cyclohexane analogues, and show a trend towards higher metabolic stability. The novel framework can be mounted onto scaffolds of druglike structures, such as fluoroquinolones, to afford active compounds with similar or even improved metabolic stability. Detailed facts of importance to specialist readers are published as "Supporting Information". Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.