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 potassium channel inhibitor and belongs to the arrhythmia treatment class of molecules.
user
Cn1cc(S(=O)(=O)O)nc1-c1ccc2c(c1)C(=O)NC(C(=O)NCc1ccc(Cl)cc1)C2
assistant