Ergolinyl compounds nitrogen-substituted in the 8- position, their preparation, and use as medicinal agents
CA 1319684 C · Owner: Schering Aktiengesellschaft · Inventors: Lorenz, Hans-Peter; Wachtel, Helmut; Eder, Ulrich
Overview
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Ergolinyl compounds which are nitrogensubstituted in the 8-position and have Formula (I) (I), and physiologically compatible salts thereof wherein, (a) R1 is hydrogen and the 8-substituent can be in the .alpha.- or .beta.-position; (i) when , represents, a double bond, R2 is hydrogen C1-4-alkyl or C1-7-acyl, R3 is hydrogen chlorine or bromine, and, R4 is C1-6-alkyl C3-6-cycloalkyl-C1-3-alkyl, C3-6-alkenyl or C3-6-alkynyl or, (ii) when the bond represents a single bond R2, and R are as defined above and R is C4 6-alkyl, C3 6, cycloalkyl-C1-3-alkyl C3-6-alkenyl, or C3-6-alkynyl; or, (b) R1 is -?-NR5R6 and the 8-substituent can be in the .alpha.or .beta.-position, represents a single or …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 29, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 29, 2010.
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