COc1ccc(CNC(=O)C[C@H]2C[C@H](C(=O)N(C(C)C)C(C)C)[C@@]3(C)c4[nH]c5ccc(Cl)cc5c4CCN3C2=O)cc1OC
PSA is a commonly used medicinal chemistry metric for the optimization of a drug's ability to permeate cells. Please predict psa of this molecule.