O=C(N/C(=C\c1ccc(/C=C(\NC(=O)c2ccccc2)c2nc3ccccc3s2)cc1)c1nc2ccccc2s1)c1ccccc1
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?