You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Can you create a molecule that matches the given characteristics? It belongs to the endothelin antagonist class of molecules.
user
CCCc1cc(NC=O)ccc1OC(C(=O)NS(=O)(=O)c1ccc(C(C)(C)C)cc1)c1cc(OC)c2c(c1)OCO2
assistant