You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a adenosine receptor antagonist. Please represent the molecule in SMILES.
user
CCCn1c(C23CCC(COc4nc(C(=O)O)cs4)(CC2)CC3)nc2nc(Oc3cccc(OC)c3)[nH]c(=O)c21
assistant