You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): The molecule is a anti allergic and belongs to the anti inflammatory class of molecules, with the characteristic of being anti histaminic.
user
CCOC(=O)C(C)(C)NC(=O)c1nnc2ccc(Cl)nn12
assistant