Cc1cccc(C)c1NC(=O)Cn1c(=O)n(CCCC(=O)NC2CCN(Cc3ccccc3)CC2)c(=O)c2ccccc21
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?