You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: When heated to decomposition it emits very toxic fumes of nitrogen,  phosphorous and  sulfur oxides. The molecule is a member of the pharmaceutical class and features a Mercaptan-like odor functional group.
user
COP(N)(=O)SC
assistant