Abietane Diterpenoids Isolated from Clerodendrum bracteatum and Their Antioxidant and Cytotoxic Activities.

ABSTRACT: Two new abietane diterpenoids (1,2), along with five known diterpenoids (3-7), were first isolated and purified from the stems of Clerodendrum bracteatum. The structures of the new compounds were established by extensive analysis of mass spectrometric and 1-D, 2-D NMR spectroscopic data. Their antioxidant activities were determined on DPPH radical scavenging and ABTS. The in vitro cytotoxic activities of the compounds were evaluated against the HL-60 and A549 cell lines by the MTT method.

SUBMITTER: Li P 

PROVIDER: S-EPMC8400359 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature