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:
Dec. 21, 1982
Filed:
Nov. 02, 1981
Werner Skuballa, Berlin, DE;
Helmut Vorbruggen, Berlin, DE;
Bernd Raduchel, Berlin, DE;
Jorge Casals-Stenzel, Berlin, DE;
Ekkehard Schillinger, Berlin, DE;
Michael H Town, Berlin, DE;
Schering Aktiengesellschaft, Berlin, DE;
Abstract
5-cyano-prostacyclins of the formula ##STR1## wherein R.sub.1 is OR.sub.2 or NHR.sub.3 ; R.sub.2 and R.sub.3 each independently is (a) H, (b) C.sub.1-10 -alkyl, (c) C.sub.1-10 -alkyl substituted by halo, C.sub.1-4 -alkoxy or phenyl, 1-naphthyl or 2-naphthyl, each optionally substituted as defined below, (d) C.sub.4-10 -cycloalkyl, (e) C.sub.4-10 -cycloalkyl substituted by C.sub.1-4 -alkyl, (f) phenyl, 1-naphthyl or 2-naphthyl, (g) phenyl, 1-naphthyl or 2-naphthyl substituted by 1-3 halogen atoms, phenyl, 1-3 alkyl groups of 1-4 C atoms each, or a chloromethyl-, fluoromethyl-, trifluoromethyl-, carboxyl-, hydroxy- or alkoxy-group of 1-4 C atoms, or (h) an aromatic, 5- or 6-membered heterocyclic ring containing one hetero atom which is O, N or S, the remaining atoms being carbon; R.sub.3 also possibly being an acyl group of a C.sub.1-15 -hydrocarbon carboxylic or sulfonic acid;