Cc1cc2c(O)c(c1)CN(CC(=O)O)Cc1cc(C)cc(c1O)CN(CC(=O)O)Cc1cc(C)cc(c1O)CN(CC(=O)O)C2
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?