beta -Adrenergic 1-[1-benzimidazolyl]-N-[2-(4-hydroxy-3-methoxy-phenyl)-2-hydroxy-ethyl]-3-amino butane and salts and hydrates thereof

摘要

Novel compounds with beta -adrenergic properties comprising 1-[1-benzimidazolyl] N-[2-(4-hydroxy 3-methoxy phenyl) 2-hydroxy ethyl]3-amino butane, corresponding to the following formula as well as its addition salts with pharmaceutically acceptable non-toxic inorganic or organic acids, and the hydrates of said salts. These compounds are particularly useful for the treatment of asthma and in the case of premature labor.