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
COc1ccc(C2(c3ccc(OC)cc3)C=Cc3c(c4sc5c6ccccc6sc5c4c4c3ccc3ccccc34)O2)cc1
assistant