NEW MEDICINES FOR THE TREATMENT OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE.

摘要

Compounds of the general formula 1 ** see formula ** in which they mean n 1; R1 hydrogen, halogen, C1-C4 alkyl or -O-C1-C4 alkyl; R2 hydrogen, halogen, C1-C4 alkyl or -O-C1-C4 alkyl; R3 C1-C4 alkyl, OH, halogen, -O-C1-C4 alkyl, -O-alkylene-C1-C4-COOH, -O-alkylene-C1-C4-CO-O-alkyl-C1-C4, with the proviso that when R1 and R2 mean in each case ortho-methyl, R1 cannot be at the same time OH