You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule is a potassium channel inhibitor and belongs to the arrhythmia treatment class of molecules.
user
NC(=O)c1ccccc1NC(=O)c1nc(NCc2ccccc2)c2c(-c3ccccc3)ccn2n1
assistant