You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: It belongs to the photochromic class of molecules.
user
COc1cc([N+](=O)[O-])cc2c1OC1(Sc3ccccc3N1C(C)C)C(C)=C2
assistant