COc1ccc(COC(=O)NN=C2CC(O)C(O)C3C2CCC2C(=O)N(c4ccc(F)cc4F)C(=O)C23)cc1
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?