a new composition of matter for a diamidodiol and a method for preparing the diamidodiol . the exemplary diamidodiol has the formula c 15 h 30 n 2 o 4 and is prepared by reacting a first quantity of 2 - amino - 2 - methyl - 1 - propanol with a second quantity of a di - substituted malonyl dichloride , preferably in ethyl acetate as solvent . a tetraamido macrocycle is prepared from the diamidodiol in two steps by oxidizing the diamidodiol to form a diacid followed by coupling using a known procedure of the diacid with an aryl diamine to yield the tetraamido macrocycle .