O=C1C=C2CC[C@H]3[C@@H]4CC[C@H](OC(=O)c5cccc6cc7ccccc7nc56)[C@H]4CC[C@@H]3[C@H]2CC1
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?