The disclosure includes hydroxamic compounds of Formula I: (I) wherein P, Z, and m are defined herein. Also disclosed is a method for treating a neoplastic disease or an immune disease with these compounds.Jedinjenje Formule I, ili neka njegova farmaceutski prihvatljiva so: naznačeno time, što je Z otsutno; m je 5, 6, 7 ili 8; P predstavlja a X1 i X2, svaki nezavisno, predstavlja halo ili OSO2Rc, gde Rc predstavlja alkil, alkenil ili alkinil. Prijava sadrži još 6 patentnih zahteva.