CCCCn1c(N)c(N(CCC(C)C)C(=O)C2CC(=O)N(CCc3ccc(OC)c(OC)c3)C2)c(=O)[nH]c1=O
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?