CCOC(=O)C1=C(C)N(NC(N)=O)C2(N)N(NC(N)=O)C(C)=C(C(=O)OCC)C12C(=O)OCC
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?