| abstract |
Products, which meet the general formula:n n n in which R 1 and R 2 taken together represent an oxygen atom = O or alternatively R 1 represents hydrogen and R 2 represents an OH radical, R 3 denotes a hydrogen atom or a straight or branched alkyl radical, or an alkynyl group having from 1 to 6 carbon atoms, R 4 represents a straight or branched alkyl radical having from 1 to 6 carbon atoms or an alkynyl group having from 2 to 6 carbon atoms R 5 denotes a hydrogen atom, an alkyl group having from 1 to 4 carbon atoms or an acylamine group n = 3 or 4; as well as the acid addition salts of said products; a process for preparing said products; and drugs, active in particular on the cardiovascular system, containing at least one of said products. |