CC(=O)Nc1ccc2c3c(cc(O)c2c1)N(C(=O)CCCC(=O)Nc1ccc2c4c(cc(O)c2c1)N(C(=O)OC(C)(C)C)CC4CCl)CC3CCl
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.