C#CCCOC(=O)N1C2=NC(C(=O)OC)=C(C(=O)OC)[C@@H]3N(CC=C)c4ccccc4[C@]23C[C@H]1C(=O)OC
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?