We (http://shityakovlab.uphero.com) have analyzed the androstenone-to-androstadienone conversion as a chemical reaction using the EasyHybrid - GTKDynamo open source software integrated into PyMOL. The interface has been designed to facilitate determining reaction pathways in biological systems, specially using hybrid QC/MM or QM/MM methods. All potential collaborators are welcome to participate in this project on human pheromones.