C=CCN1C(=O)c2ccc(C(=O)N(CC(C)C)c3c(N)n(CCCC)c(=O)[nH]c3=O)cc2C1=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?