| 摘要 |
<p>A process for preparing lysergic acid esters of the formula <CHEM> wherein R is alkyl of up to 3 carbon atoms, comprises reacting corresponding lysergic acid or isolysergic acid amides with corresponding alcohols at temperatures of 0 DEG to 65 DEG C for 2 to 30 hours in the presence of an acid at a pH value of 0-1.</p> |
