Cc1ccc(Oc2nc3ccccn3c(=O)c2/C=C(\C#N)C(=O)Nc2c(C)n(C)n(-c3ccccc3)c2=O)c(C)c1
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.