You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
It belongs to the endothelin antagonist class of molecules. Use the above information to create a molecule.
user
Cc1ccc(-c2c(NS(=O)(=O)c3ccc(C(C)(C)C)cc3)ncnc2OCCNCS(=O)(=O)c2ccc(C)cc2)cc1
assistant