摘要 |
<p>An improved process for the preparation of 5-amino-7-(substituted-amino)-quinoline-3-carboxylic acids, having known antibacterial activity, is described wherein a 5-fluoro-7-(protected and substituted-amino)quinoline-3-carboxylic acid is converted to a 5-protected amino compound and where both protected amino groups are simultaneously removed to give the desired product.</p> |