You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is a adenosine antagonist.
user
CCOC(=O)C1CCC(=O)C(n2nc(-c3c(-c4ccccc4)nn4ccccc34)ccc2=O)C1
assistant