COc1ccc(OC)c(C2c3[nH]c4ccccc4c3C[C@H]3C(=O)N(CCCOC(C)C)CC(=O)N23)c1
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?