Triterpenoids with α-glucosidase inhibitory activity and cytotoxic activity from the leaves of Akebia trifoliata.

ABSTRACT: Ten pentacyclic triterpenoids including a new multiflorane triterpene acid, 2α,3β,23-trihydroxymultiflor-7-en-28-oic acid (1), and a new lupane triterpene monoglucoside named akebiaoside C (2), were obtained from the leaves of Akebia trifoliata. Their structures were elucidated by extensive spectroscopic analysis, and they were all isolated from the leaves of A. trifoliata for the first time. These compounds, except 4 and 5, showed in vitro α-glucosidase inhibitory activity much stronger than acarbose. Especially, 2, 3, 6, 8 and 10 displayed in vitro α-glucosidase inhibitory activity with IC₅₀ values from 0.004 to 0.081 mM, which were close or even more potent than corosolic acid (IC₅₀ 0.06 mM). Triterpenoids 1, 8 and 10 were further reveal

SUBMITTER: Ouyang JK 

PROVIDER: S-EPMC9091492 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature