You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: The molecule is a photochromic.
user
CCC(=O)CCC(=O)OCCOc1ccc(C2(c3ccc(OC)cc3)C=Cc3c(cc(N4CCOCC4)c4ccccc34)O2)cc1
assistant