Triterpenoids from the barks of Terminalia chebula

Abstract

Two new triterpenoids, termichebuloside A (1), an unusual dimeric triterpenoid saponin, and termichebulolide (2), an oleanolic acid-type lactone, along with 11 known triterpenoids, were isolated from MeOH extract of the barks of Terminalia chebula. The structures of 1 and 2 were elucidated to be arjunglucoside I-(3-O-19′,23-O-19′)-18,19-seco-19-hydroxyarjunglucoside I (1) and 2α,3β,23-trihydroxyolean-11,13(18)-dien-28,19β-olide (2), respectively, on the basis of spectroscopic evidences and biogenetic consideration.

Keywords::

• termichebuloside A
• termichebulolide
• Terminalia chebula
• dimeric triterpenoid saponin
• triterpenoid lactone

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

The authors thank the National Natural Science Foundation of China [grant number 81072545], [grant number 21202182] for financial support.