O=C(N[C@@H]1C/C=C\C[C@@H](CC(=O)N(CCO)Cc2ccccc2)C(=O)N[C@@H](c2ccccc2)COC1=O)OCC1c2ccccc2-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?