Chemotaxonomic significance of limonoids and triterpenoids from Dictamnus angustifolius G. Don ex Sweet

Abstract Phytochemical investigation of the root bark of Dictamnus angustifolius G. Don ex Sweet (Rutaceae) resulted in the isolation and characterization of three degraded limonoids ( 1 – 3 ), five limonoids ( 4 – 8 ) and four triterpenoids ( 9 – 12 ). All structures were elucidated on the basis of spectral analysis. Among them, compounds 4 , 6 , 8 , 9 and 12 were isolated from the genus Dictamnus for the first time. Compounds 10 and 11 were obtained from D . angustifolius for the first time. Moreover, the chemotaxonomic significance of these compounds was summarized.