O=C(c1ccc2c(c1)OCO2)N1CCC2(CC1)Oc1ccc(Cl)cc1C(=O)C21CC(c2cccnc2)=NO1
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?