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:
Jan. 15, 1985
Filed:
May. 10, 1983
Other;
Abstract
Novel derivatives of 9-oxalysergic acid of the formula ##STR1## wherein R is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, R.sub.1 is selected from the group consisting of hydrogen, chlorine and bromine, R.sub.2 is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms, aralkyl of 7 to 12 carbon atoms and cycloalkylalkyl of 4 to 7 carbon atoms, R.sub.3 is selected from the group consisting of --CH.sub.2 OH, alkylthiomethyl with 1 to 4 alkyl carbon atoms, --CH.sub.2 CN, --COOH, --COOAlk and ##STR2## Alk is alkyl of 1 to 5 carbon atoms, R.sub.4 is selected from the group consisting of hydrogen and alkyl of 1 to 5 carbon atoms, R.sub.5 is alkyl of 1 to 5 carbon atoms or R.sub.4 and R.sub.5 together with the nitrogen form a saturated heterocycle optionally containing another heteroatom and their non-toxic, pharmaceutically acceptable acid addition salts having essentially dopaminergic agonist activity, inhibiting activity of prolactin secretion, serotoninergic activity and antihypertensive activity and their preparation.