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:
Aug. 10, 1993
Filed:
Jun. 28, 1991
Heinz-Werner Kleemann, Kelsterbach, DE;
Rainer Henning, Hattersheim am Main, DE;
Hansjorg Urbach, Kronberg/Taunus, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
The invention relates to compounds of the formula ##STR1## in which R.sup.1 and R.sup.2 are identical or different and are hydrogen or aralkyl, R.sup.3 is alkyl, cycloalkyl or cycloalkylalkyl, R.sup.4 and R.sup.5 are identical or different and are hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl or a heterocyclic radical and R.sup.6 and R.sup.7 are identical or different and are hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, aryl or arlkyl or R.sup.6 and R.sup.7, together with the carbon atom carrying them, are cycloalkyl. The novel compounds are prepared by a carbonyl olefination according to Wittig. They are intermediates for the preparation of pharmaceuticals, in particular of inhibitors of renin and HIV protease.