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 a organic light-emitting device and belongs to the fluorescent class of molecules.
user
CC1(C)c2ccccc2-c2ccc3c4ccccc4n(-c4ccc(C#N)c(-c5cccc(-n6c7ccccc7c7cc8c(cc76)oc6ccccc68)c5)c4)c3c21
assistant