| Literature DB >> 26523419 |
Ming Zhao1, Monday M Onakpa1,2, Bernard D Santarsiero3, Wei-Lun Chen1, Karina M Szymulanska-Ramamurthy1, Steven M Swanson1,4, Joanna E Burdette1, Chun-Tao Che1.
Abstract
New 17-nor-pimaranes (1, 2), (9βH)-pimaranes (3, 4), and 17-nor-(9βH)-pimarane (5) were isolated from the tuber of Icacina trichantha. The structures were elucidated based on spectroscopic and HRMS data. The absolute configurations of 3 and 5 were determined by single-crystal X-ray diffraction. Compound 5 possesses a unique 19,20-δ-lactone moiety. Compound 3 showed cytotoxicity against MDA-MB-435 (human melanoma cancer) cells with an IC50 value of 7.04 μM. A plausible biogenetic pathway for compounds 1-5 is proposed.Entities:
Mesh:
Substances:
Year: 2015 PMID: 26523419 PMCID: PMC4703074 DOI: 10.1021/acs.jnatprod.5b00688
Source DB: PubMed Journal: J Nat Prod ISSN: 0163-3864 Impact factor: 4.050