摘要 |
<p>A new method of purification of Lorazepam is disclosed that consists in removing products of synthesis, decomposition products, water or other solvent that forms a solvate with Lorazepam, by crystallization or stirring in an organic solvent of the ether, ester or ketone type. Lorazepam prepared via this method can be utilized in the pharmaceutical industry for the manufacture of pharmaceuticals.</p> |