You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: It belongs to the anti allergy class of molecules.
user
O=C(NCCCO)c1ccc2c(c1)Cc1c([nH]c(=O)[nH]c1=O)O2
assistant