C[C@@H](CO)N1C[C@@H](C)[C@@H](CN(C)Cc2ccc(Cl)c(Cl)c2)Oc2c(NC(=O)C3CCCCC3)cccc2C1=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?