C=CC[C@@H](CC(=O)N[C@H](CO)Cc1ccccc1)C(=O)NCCOC(=O)[C@@H](CC=C)CC(=O)OC(C)(C)C
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?