Process for the preparation of alkyl mercapto methyl ergoline derivatives
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United States of America Patent
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May 28, 2002
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N/A
app pub date -
Mar 21, 2001
filing date -
Jan 27, 1999
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Abstract
Process for the preparation of compounds active in the treatment of Parkinson's disease, and such compounds, having general formula (VI) wherein R.sub.4 may be, independently, a linear, branched or cyclic, saturated or unsaturated C.sub.1-8 alkyl radical, such as, for example, the radicals methyl, ethyl, propyl, butyl, isobutyl, tert-butyl, pentyl, cyclopentyl, hexyl, cyclohexyl and octyl. The process utilizes as starting materials the compound of formula (I) wherein R.sub.1 represents a linear, branched or cyclic, saturated or unsaturated C.sub.1-8 alkyl residue. ##STR1##
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