COc1ccc([C@@H]2CC(=O)[C@@H]3CN(S(=O)(=O)c4ccc(C)cc4)[C@H](c4cccc(Cl)c4)C[C@@H]3N2S(=O)(=O)c2ccccc2)cc1
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.