Published in:
01-06-2021 | Original Paper
Anti-Vpr activities of sesqui- and diterpenoids from the roots and rhizomes of Kaempferia candida
Authors:
Prema, Takeshi Kodama, Hnin Htet Wai Nyunt, Hla Ngwe, Ikuro Abe, Hiroyuki Morita
Published in:
Journal of Natural Medicines
|
Issue 3/2021
Login to get access
Abstract
New copaene-type and nerolidol-type sesquiterpenoids, 7-hydroxymustakone (1) and 15-hydroxynerolidol (2), and a 15-norlabdane diterpenoid, kaempcandiol (3), together with four known compounds (4–7) were isolated from the chloroform extract of Kaempferia candida roots and rhizomes. The structures of the new compounds 1–3 were elucidated based on 1D and 2D NMR and HRESIMS spectroscopic analyses. The extract of the K. candida roots and rhizomes and all isolated compounds 1–7 possessed HIV-1 viral protein R (Vpr) inhibitory activities on the TREx-HeLa-Vpr cell line at a 5 μM concentration, without detectable cytotoxicity.