You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is light-emitting.
user
CC1CC=Cc2c3c(n(-c4ccccc4)c21)C1C=CC=CC1(C)N=C3c1ccc(P(=O)(c2ccccc2)c2ccccc2)cc1
assistant