Sanguinarine analogs as PP2C inhibitors are disclosed for the treatment of various cancers, as well as methods of synthesizing such analogs. Interactions of the electrically charged particles with electromagnetic fields in boundary layers are coordinated for generation of control forces for various applications. The invention further relates to corn seeds and plants produced by crossing plants of variety CV651587 with plants of another variety, such as another inbred line. A contact node as a transmission source of the inter-link failure notification RPR-MAC frame and each node having received the inter-link failure notification RPR-MAC frame immediately flush learning contents of their own learning data bases.