CCCCn1c(N)c(N(Cc2ccccc2OC)C(=O)CN2C(=O)NC3(CCCC3)C2=O)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?