You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a photochromic.
user
CC1(C)c2ccccc2N(CCOCCN(CC=O)CC=O)C12C=Nc1c(c(CBr)cc3ccccc13)O2
assistant