Six New Triterpene Derivatives from Aralia chinensis Var. dasyphylloides.

ABSTRACT: Aralia chinensis var. dasyphylloides is widely distributed in China and used as a traditional herbal medicine for the treatment of digestive and immune system diseases. The present study aimed to search for novel oleanolic-type triterpenoids in low-polarity fractions. Six new triterpene derivatives (1-6), together with two known compounds were isolated from the barks of A. chinensis var. dasyphylloides. Their structures were elucidated by 1D- and 2D-NMR spectroscopic analysis and chemical methods. They were identified as 3-oxo-oleana-11,13(18)-dien-28,30-dioic acid (1), 30-hydroxy-3-oxo-oleana-11,13(18)-dien-28-oic acid (2), 3?-hydroxy-oleana-11,13(18)-dien-28-oic acid-28-O-?-d-glucopyranoside (3), 3?,30-dihydroxy-oleana-11,13(18)-dien-28-oic acid-28-O-?-d-glucopyranoside (4), 3?-hydroxy-oleana-11,13(18)-dien-28-oic acid-3-O-?-d-xylopyranosyl-(1 ? 2)-?-d-glucopyranoside (5), 3?,29-dihydroxy-oleana-9(11),12-dien-28-oic acid-28-O-?-d-glucopyranoside (6), namely, araliachinolic acids I and II and araliachinosides I-IV. The cytotoxicity of the isolated compounds was tested against HepG2, A549, SGC7901, and MCF7 cell lines, but no apparent activity was observed at a concentration of 50 ?M.

SUBMITTER: Gao RX 

PROVIDER: S-EPMC6273084 | biostudies-other | 2016 Dec

REPOSITORIES: biostudies-other