COc1ccc(S(=O)(=O)N(C)[C@H]2C[C@H]3c4cc(Oc5ccccc5C)ccc4CCN3C(=O)[C@H]2[C@H](C)O)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.