Patent ZA-849380-B (ZA)
Title: Aminopropanol derivatives of substituted 2-hydroxypropiophenones,their preparation,and therapeutic agents containing these compounds
Inventor: FRANKE ALBRECHT
IPC: A61K31/41
Filed: 1984-12-03
Abstract: 1. Claims (for the Contracting states : BE, CH, DE, FR, GB, IT, LI, NL, SE) An aminopropanol derivative of the formula   see diagramm : EP0152556,P11,F4   where R**1 and R**2 are identical or different and are each hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl or hydroxyalkyl, each of up to 6 carbon atoms, alkoxyalkyl, alkylthioalkyl or dialkylaminoalkyl, each of up to a total of 9 carbon atoms, or phenylalkyl or phenoxyalkyl, where the alkyl radical is of up to 6 carbon atoms and the phenyl radical is unsubstituted or substituted by alkyl or alkoxy, each of up to 3 carbon atoms, or R**1 and R**2 , together with the nitrogen atom which links them, form a 5-membered to 7-membered saturated heterocyclic ring which can be substituted by one or two phenyl and/or hydroxyl radicals and can contain an oxygen or nitrogen atom, as a further heteroatom in the ring, and such an additional nitrogen atom can be substituted by alkyl of 1 to 3 carbon atoms or by phenyl, and - Het is thien-2-yl, thien-3-yl, pyrid-2-yl, pyrid-3-yl, pyrid-4-yl, fur-2-yl, 1-alkylpyrryl-2, 1-alkylpyrryl-3 or 1-alkylpyrazol-4-yl, alkyl being of 1 to 3 carbon atoms, and its physiologically tolerated addition salts with acids. 1. Claims (for the Contracting state : AT) A process for the preparation of an aminopropanol derivative of the formula I   see diagramm : EP0152556,P12,F5   where R**1 and R**2 are identical or different and are each hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl or hydroxyalkyl, each of up to 6 carbon atoms, alkoxyalkyl, alkylthioalkyl or dialkylaminoalkyl, each of up to a total of 9 carbon atoms, or phenylalkyl or phenoxyalkyl, where the alkyl radical is of up to 6 carbon atoms and the phenyl radical is unsubstituted or substituted by alkyl or alkoxy, each of up to 3 carbon atoms, or R**1 and R**2 , together with the nitrogen atom which links them, form a 5-membered to 7-membered saturated heterocyclic ring which can be substituted by one or two phenyl and/or hydroxyl radicals and can contain an oxygen or nitrogen atom, as a further heteroatom in the ring, and such an additional nitrogen atom can be substituted by alkyl of 1 to 3 carbon atoms or by phenyl, and - Het is thien-2-yl, thien-3-yl, pyrid-2-yl, pyrid-3-yl, pyrid-4-yl, fur-2-yl, 1-alkylpyrr-2-yl, 1-alkylpyrr-3-yl or 1-alkylpyrazol-4-yl, alkyl being of 1 to 3 carbon atoms, and its physiologically tolerated addition salts with acids, wherein a) a compound of the formula II   see diagramm : EP0152556,P13,F1   where A is   see diagramm : EP0152556,P13,F2   or   see diagramm : EP0152556,P13,F3   B being a nucleofugic leaving group, is reacted with an amine of the formula HNR**1 R**2 where R**1 and R**2 have the stated meanings, or b) a compound of the formula IV   see diagramm : EP0152556,P13,F4   where R**1 and R**2 have the stated meanings, is hydrogenated catalytically, and, if desired, the resulting compound is converted into its addition salts with physiologically tolerated acids.