Discovery of Membrane Permeability, Pharmacokinetics Properties and Mechanism of Action for Analogs of Ethylenediamine-N,N′-di-2-(3-Cyclohexyl)Propionic Acid and 1,3-Propandiamine-N,N′-di-2-(3-Cyclohexyl)Propionic Acid with Antiproliferative Activity Using In Vitro and In Silico Methods