You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is photochromic. Use the above information to create a molecule.
user
CCCCCCc1ccc(C2(c3ccc(CCCCCC)cc3)c3cc(N(c4ccccc4)c4ccccc4)ccc3-c3c2cc(O)c2ccccc32)cc1
assistant