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 and is anti thrombotic. Please write the SMILES representation of it.
user
C=c1c(=O)[nH]c2n1Cc1c(ccc(OC(CCCC)CCCC(=O)N(O)C3CCCCC3)c1Cl)N=2
assistant