O=C(NC1=C(Cl)C(=O)c2ccccc2C1=O)C(=O)C(C(=O)c1ccc2ccccc2c1)C1OC(=O)c2ccccc21
A negative log P value indicates preferential solubility in water and a positive value indicates an affinity for octanol. What is the Log P of this molecule?