You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a organic light-emitting diode.
user
C1=CC2=CC3=C(CC2C=C1)N(C1c2ccccc2C=C2C1C1=C(CCC=C1)N2C1=NC(c2cccc4c2C=CCC4)N=C(c2ccccc2-c2ccccc2)N1)C1C=CC=CC31
assistant