| 摘要 |
<p>The present invention relates to a novel, cost-effective and simple process for commercial scale production of methoxsalen which obviates the use of column chromatography for purification of dealkylated mass obtained from Ammi majus plant extract to obtain purified dealkylated mass enriched with methoxsalen and xanthotoxol with low impurity, which is suitable for methylation to obtain a pharmaceutical grade methoxsalen.</p> |
