A process for preparing cabergoline (I) from ergoline-8β-carboxylic acid ester (XIII) comprising the following steps. (XIII), (XVI), (XVII), (XVIII), (XIX), (I). The present case also relates to the intermediates (XVI), (XVII), (XVIII) and (XIX) as well as the polymorphic amorphous form of Cabergoline (I) and the production thereof.
一种从8-β-
麦角酸酯(XIII)制备卡贝肯(I)的工艺,包括以下步骤:(XIII),(XVI),(XVII),(XVIII),(XIX),(I)。本案还涉及中间体(XVI),(XVII),(XVIII)和(XIX),以及卡贝肯(I)的多形无定型形式及其生产。