You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: It is a member of the organic light-emitting device class of molecules that affects both improved driving voltage and improved luminous efficiency. Please represent the molecule in SMILES.
user
CC1(C)c2cc(-c3ccc4c(c3)-c3ccccc3C43c4ccccc4C(C)(C)c4ccccc43)ccc2-c2ccc(N(c3ccc(-c4ccccc4)cc3)c3ccc(-c4ccccc4)cc3)cc21
assistant