COc1ccccc1CNC(=O)CCC1N=C2c3ccccc3N=C(SCC(=O)NCCc3ccc(OC)c(OC)c3)N2C1=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?