| 摘要 |
<p>The invented process for preparing 7-hydroxy-3,4-dihydrocarbostyril of the general formula IV with purity higher than 98 percent is characterized by execution of a catalytic hydrogenation in order to purify 7-hydroxy-3,4-dihydrocarbostyril from 7-hydroxy carbostyril of the general formula 1.</p> |
