CC(C)C[C@H]1CN([C@@H](Cc2ccccc2)CN2CCC[C@@H]2CN2C(=O)C(=O)NC[C@@H]2Cc2ccccc2)C(=O)C(=O)N1CCc1ccccc1
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?