Process for the preparation of cabergoline
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United States of America Patent
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Dec 28, 2010
Grant Date -
Dec 20, 2007
app pub date -
Mar 2, 2005
filing date -
Mar 4, 2004
priority date (Note) -
Expired
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Abstract
A process for preparing cabergoline (I) from ergoline-8.beta.-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. ##STR00001## ##STR00002##
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