COC(=O)c1ccc(C23CC4(C2)[C@@H](c2ccccc2)N(CC2CCCCC2)C[C@@H]4C3c2ccc(Cl)nc2)cc1
Molecules with a polar surface area of greater than 60 angstroms squared (Å2) is hard to pass brain blood barrier. What's the psa of this molecule?