C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
167/231, 167/244
C07D 311/58 (2006.01) A61K 31/35 (2006.01) C07D 319/20 (2006.01) C07D 405/06 (2006.01)
Patent
CA 1322553
4-15969/+ Process for the manufacture of hydrogenated 1-benzooxa- cycloalkylpyridinecarboxylic acid compounds Abstract The invention relates to a process for the manu- facture of novel hydrogenated 1-benzooxacycloalkyl- pyridinecarboxylic acid compounds of the formula Image (I) in which either R1 represents carboxy, lower alkoxy- carbonyl, carbamoyl, N-lower alkylcarbamoyl, N,N-di- lower alkylcarbamoyl or optionally acylated hydroxy- methyl and R2 represents hydrogen, an optionally etherified or acylated hydroxy group or an optionally acylated amino group, or R1 represents hydrogen and R2 represents carboxy, lower alkoxycarbonyl, carbamoyl, N-lower alkylcarbamoyl, N,N-di-lower alkyl- carbamoyl or optionally acylated hydroxymethyl, R3 represents hydrogen or lower alkyl, alk represents lower alkylene or lower alkylidene, the ring A is unsubstituted or is mono- or poly-substituted by hydroxy, lower alkoxy, lower alkanoyloxy, halogen, lower alkyl and/or by trifluoromethyl, the dotted line is intended to indicate the presence of a single or a double bond, and either each of X and Y represents an oxygen atom and n represents 1, or X represents a methylene group, Y represents an oxygen atom and n represents 1, or X represents an oxygen atom, Y repre- sents a methylene group and n represents 1, or X represents a direct bond, Y represents an oxygen atom and n represents 2, and of their tautomers and/or salts. These compounds can be used as pharmaceutical active ingredients and can be manufactured in a manner known per se.
540433
Fetherstonhaugh & Co.
Novartis Ag
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