C[C@]12c3[nH]c4cc(-c5ccco5)ccc4c3CCN1C(=O)[C@@H](CC(=O)NCCC1=CCCCC1)C[C@@H]2C(=O)N1CCCCC1
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?