You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a phosphodiesterase inhibitor. Please write the SMILES representation of it.
user
COc1ccc(Cc2nc3c(c4c2[nH]c2ccccc24)C(NCC2CCCO2)CC(C)(C)C3)cc1
assistant