You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a phosphorescent and belongs to the organic electroluminescent class of molecules, with the characteristic of being electroluminescent. Please write the SMILES representation of it.
user
c1ccc(-c2ccc3c(c2-c2cccc4c2c2ccccc2n4-c2cccc4c2oc2cccnc24)c2ccccc2n3-c2cccc3c2oc2cccnc23)cc1
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