CCN(CC)C(=O)CSc1nc2cc3c(cc2c(=O)n1Cc1ccc(C(=O)NCCc2ccc(OC)c(OC)c2)cc1)OCO3
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?