COc1cccc(C2CC3=Nc4ccccc4N(C(=O)CCC(=O)O)C(c4ccc(F)cc4)C3=C(O)C2)c1
Molecules with a polar surface area of greater than 140 angstroms squared (Å2) tend to be poor at permeating cell membranes. What's the psa of this molecule?