O=c1nc(NC(c2ccccc2)(c2ccccc2)c2ccccc2)ccn1CCNCCn1ccc(NC(c2ccccc2)(c2ccccc2)c2ccccc2)nc1=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?