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.
从8β-
麦角酸酯(XIII)制备卡贝哥林(I)的过程包括以下步骤:(XIII),(XVI),(XVII),(XVIII),(XIX),(I)。本案还涉及
中间体(XVI),(XVII),(XVIII)和(XIX),以及卡贝哥林(I)的多形无定形形式及其生产。