(A–D). Comparative analysis of the physicochemical properties of DAPT, semagacestat, LY-411,575, and avagacestat structures. (A) 2D structures. (B) A radar diagram shows the overlap with the Lipinski rules: FLEX flexibility, INSAT relative share of sp3 carbon atoms, INSOLU LogP values, POLAR polar surface area, SIZE molecular mass, and LIPO hydrophobic surface area. The pink area represents the optimal values; the superimposed lines represent the values specific to each compound. (C) The electron densities are mapped on the molecular surfaces and colored to highlight the surface properties: green, hydrophobic; blue, H-bond donor; red, H-bond acceptor; yellow, polar. (D) The overlap between 3D molecular structures and DAPT as the reference molecule.