The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 05, 1988
Filed:
Apr. 02, 1985
Csaba Szantay, Budapest, HU;
Lajos Szabo, Budapest, HU;
Gyorgy Kalaus, Budapest, HU;
Janos Kreidl, Budapest, HU;
Maria Farkas nee Kirjak, Budapest, HU;
Laszlo Czibula, Budapest, HU;
Bela Stefko, Budapest, HU;
Gyorgy Visky, Budapest, HU;
Judit Meszaros nee Brill, Budapest, HU;
Richter Gedeon Vegyeszeti Gyar Rt., Budapest, HU;
Abstract
The invention relates to new eburnane derivatives of the formula (I) ##STR1## wherein R.sup.1 is alkyl having from 1 to 6 carbon atoms, and acid addition salts thereof. The invention further relates to a process for the preparation of these compounds and pharmaceutical compositions containing them. Compounds of formula (I) show remarkable CNS-activity and are useful intermediates in the preparation of other, pharmaceutically active compounds.