CC(=O)O.CCOc1ccc(NC(=O)CN2C(=O)/C(=C3\SC(=S)N(C4CCS(=O)(=O)C4)C3=O)c3ccccc32)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.