COc1ccc(N(C(=O)Nc2ccc(Cl)c(Cl)c2)C2c3cccn3C(=O)N2c2ccc(Cl)c(Cl)c2)cc1
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?