CCn1c(N2CCN(CC(=O)c3c(C)n(C)c4ccc(OC)cc34)CC2)nc2c1c(=O)[nH]c(=O)n2C
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?