CCCCn1c(=O)[nH]c(=O)c2c1nc(CN(C)Cc1cccc(OC)c1OC)n2CCC.O=C(O)C(=O)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?