Reactor is a virtual reaction processing tool which transforms starting compounds to products according to a given chemical reaction definition. The reaction scheme defines the way that the reactants are converted to products, and additional rules can encode the related knowledge to produce synthetically feasible molecules.
Among other ChemAxon applications, Reactor is also integrated into KNIME. You can easily create workflows with the introduction of Reactor.
KNME works with application nodes, each of them with well-defined function.
Reactor's KNIME nodes are divided according to the number of reactants applied in a reaction:
Tri Reactor: The reaction equation requires three reactants to be provided.