C#CCOCCOCCOCCNc1nc(N2CCN(C(=O)[C@H](C(C)C)n3cc(CCO)nn3)CC2)nc(N2CCN(C(=O)[C@H](C(C)C)n3cc(CCO)nn3)CC2)n1
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?