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. 28, 1990
Filed:
Nov. 01, 1989
Ulrich Lerch, Hofheim am Taunus, DE;
Henning Rainer, Hattersheim am Main, DE;
Joachim Kaiser, Frankfurt am Main, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
Calcium antagonists of the formula ##STR1## with R(1), R(2), R(3) and R(4) being, inter alia, H, alkyl, alkoxy, halogen, in some cases phenyl; m being 1-4; n being 0-3; X being CH.sub.2, O, S, CO, CHOH or CR.sub.2, and R(5) being various groups containing nitrogen atoms, are described. They are obtained by reaction of compounds II which are likewise new and which contain in place of R(5) a leaving group Y (Cl, Br, I) with the appropriate (cyclic) amino compound. Another synthesis comprises reaction of the appropriate indollinone derivative IV which has a non-etherified hydroxyl group with a side chain which contains a terminal leaving group Z (Cl, Br, I) in the presence of a base. Furthermore, indolinone derivatives VI with an ether side chain with a terminal epoxide group can be reacted with (cyclic) amines to give compounds I.