CC(=O)OCC1OC(n2c(=S)n(-c3ccccc3)c(=O)c3ccccc32)C(OC(C)=O)C(OC(C)=O)C1OC(C)=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?