5 subpart h above for n octanoyl o o o trihydrogendeferoxamine there is obtained the corresponding i similarily proceding as is described above in subpart a of this example but substituting a stoichiometrically equivalent amount of the deferoxamines as prepared in example 5 subpart i above for n octanoyl o o o trihydrogendeferoxamine there is obtained the corresponding j similarly proceeding as is described above in subpart a of this example but substituting a stoichiometrically equivalent amount of the deferoxamines as prepared in example 5 subpart j above for n octanoyl o o o trihydrogendeferoxamine there is obtained the corresponding k similarly proceeding as is described above in subpart a of this example but substituting a stoichiometrically equivalent amount of the deferoxamines as prepared in example 5 subpart k above for n octanoyl o o o trihydrogendeferoxamine there is obtained the corresponding l similarly proceeding as is described above in subpart a of this example but substituting a stoichiometrically equivalent amount of the deferoxamines as prepared in example 5 subpart l above for n octanoyl o o o trihydrogendeferoxamine there is obtained the corresponding m similarily proceeding as is described above in subpart a of this example but substituting one half of the stoichiometrically equivalent amount of the following equimolar mixtures of acyl chlorides c butyryl chloride and octanoyl chloride for butyryl chloride there is obtained a corresponding mixture of products including the exact positions of the acyl or hydrogen groups has not yet been established with certainity in examples 7 and 8 the active ingredient is n acetyl o.