PROCESS FOR THE PREPARATION OF PURE RISEDRONIC ACID OR SALTS
摘要
<p>The present invention relates to an industrially advantageous process of making bisphosphonic acid or its salt in particular risedronic acid, [l-hydroxy-2(3-pyridinyl)ethylidene] bisphosphonic acid, having formula-(I) or its salts in high purity and high yields.</p>
