| abstract |
The present invention relates to novel products, responding to general formula: <IMAGE> (I) in which R1 and R2 taken together represent an atom of oxygen =O or R1 represents hydrogen and R2 represents an OH radical, R3 designates an atom of hydrogen or a straight or branched alkyl radical, or an alkynyl group having from 1 to 6 atoms of carbon, R4 represents a straight or branched alkyl radical having from 1 to 6 atoms of carbon, R5 designates an atom of hydrogen, an alkyl group having from 1 to 4 atoms of carbon or an acylamine group and n=3 or 4; as well as to the acid addition salts of said products, to a process for preparing said products and to drugs, particularly active on the cardiovascular system, containing at least one of said products. |