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 asthma treatment, a anti allergic, a crth2 antagonist, and anti allergic agent.
user
O=C(O)Cn1ccc2c(OCCCOC3CCCCO3)cccc21
assistant