Dihydrocinnamic acid derivatives from Hortia species and their chemotaxonomic value in the Rutaceae

► Nine dihydrocinnamic acids were isolated from Hortia brasiliana and Hortia oreadica. ► Three novel dihydrocinnamic acids were characterized. ► The chemotaxonomic value of the dihydrocinnamic acids in the Rutaceae is discussed. ► Hortia showed affinities with other Rutoideae species.