CSc1nc2c(c(O)c(C)c(=O)n2C2OCC(OC(C)=O)C(OC(C)=O)C2OC(C)=O)c(=O)n1C
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?