You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a pde4 inhibitor.
user
COc1ccc(C(Cc2c(Cl)cncc2Cl)OC(=O)c2cc(COc3cccc(C(NC(=O)OC4CN5CCC4CC5)c4ccccc4)c3)n(C)n2)cc1OC
assistant