In this respect, the interaction of δ-cadinene, t-cadinol, (E)-cinnamaldehyde, cinnamaldehyde dimethyl acetal, (E)-cinnamic acid, α-copaene, and α-muurolene with various enzymes including AChE, BChE, BACE1, MAO-A, and MAO-B which are responsible in the creation and progression of AD, was studied. The gene discussed is ACHE; the disease is Alzheimer disease.