COC(=O)C(c1ccccc1)N(Cc1cccc(CN(C(C(=O)OC)c2ccccc2)S(C)(=O)=O)c1)S(C)(=O)=O
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?