1.4 - dihydro - 5 - isopropoxy - 2 - methyl - 4 - (2 - trifluormethylphenyl) - 1.6 - naphthyridin - 3 - carboxylic acid - 2 - (n - methyl - n - phenylmethylamino) - ethyl ester fumarate in optically isomeric forms, procedures to manufacture and product

摘要

The invention relates to (+/-)-1,4-dihydro-5-isopropoxy-2-methyl- 4-(2-trifluoromethylphenyl)-1,6-naphthyridine-3-carboxylic acid 2-(N-methyl-N-phenylmethylamino)ethyl ester fumarate and the optical isomers (+)-1,4-dihydro-5-isopropoxy-2-methyl- 4-(2-trifluoromethylphenyl)-1,6-naphthyridine-3-carboxylic acid 2-(N-methyl-N-phenylmethylamino)ethyl ester fumarate and (-)-1,4-dihydro-5-isopropoxy-2-methyl-4-(2-trifluoromethylphenyl)- 1,6-naphthyridine-3-carboxylic acid 2-(N-methyl-N-phenylmethyl- amino)ethyl ester fumarate, their preparation and use in medicaments for controlling high blood pressure and cardiac and vascular disorders.