You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: It belongs to the photochromic class of molecules. Please write the SMILES representation of it.
user
CCOC(=O)CCCC[N+]1=C(C)C(C)(C)c2ccccc21
assistant