CCOC(=O)C1=C(C)C2C3C(=O)N(c4ccc(C)cc4C)C(=O)C3C1(C)C1C(=O)N(c3ccc(C)cc3C)C(=O)C21
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?