CCOC(=O)C(CCCNC(=O)OC(C)(C)C)N(Cc1ccc(OC)cc1OC)C(=O)CC(=O)CP(=O)(OCC)OCC
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?