Fig. 6

Evaluation of drug-likeness and oral bioavailability of the selected lead candidates, stigmasterol, and the reference drug. LIPO denotes lipophilicity, INSOLU denotes insolubility, INSATU refers to the insaturation index, FLEX represents molecular flexibility, SIZE indicates molecular weight, and POLAR refers to polarity. (a) SA4, (b) SA12, (c) SA15, (d) stigmasterol, (e) donepezil.