A new polyoxygenated cyclohexene bonianol A (1) and another new polyoxygenated seco-cyclohexene bonianol B (2) were isolated from the leaves of Uvaria boniana, and their structures were established on the basis of spectroscopic methods including IR, HR-ESI-MS, 1D, and 2D NMR.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1080/10286020.2012.743529 | DOI Listing |
Sci Rep
June 2024
Program in Chemical Sciences, Chulabhorn Graduate Institute, Bangkok, Thailand.
Twelve polyoxygenated cyclohex(a/e)ne diterpene esters, named albiflorenes A-L (1-12), were isolated from the whole plants of Kaempferia albiflora, known as "Prao Mang Mum." Their structures and relative stereochemistry were determined by extensive spectroscopic analysis. Furthermore, the comparison of experimental electronic circular dichroism (ECD) curves with the curves predicted by TDDFT was used to determine the absolute configurations.
View Article and Find Full Text PDFFitoterapia
June 2024
Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam; Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam. Electronic address:
A phytochemical study of the aerial parts of Piper mutabile C. DC. revealed seven undescribed compounds [two (2-7')-neolignans and five polyoxygenated cyclohexene glycosides] and six known propenylcatechol derivatives.
View Article and Find Full Text PDFFront Pharmacol
January 2024
Department of Neurosurgery, Shenzhen Second People's Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China.
Due to its highly aggressiveness and malignancy, glioblastoma (GBM) urgently requires a safe and effective treatment strategy. Zeylenone, a natural polyoxygenated cyclohexenes compound isolated from , has exhibited potential biological activities in various human diseases, including tumors. We designed and synthesized a series of (+)-Zeylenone analogues and evaluated their anti-GBM roles through structural-activity analysis.
View Article and Find Full Text PDFNat Prod Res
December 2024
Chemistry Department, University of Dar es Salaam, Dar es Salaam, Tanzania.
This article reviews the geographical distribution, ethnomedicinal applications, and phytochemistry of the genus Baill, tribe Uvariae of the family Annonaceae. The reviewed works of literature were collected from various electronic databases including Google Scholar, PubMed, Science Direct, The International Plant Names Index (IPNI), and Research Gate. During this review, ninety-eight species of the genus were found to be widely distributed in tropical Africa.
View Article and Find Full Text PDFPhytochemistry
December 2023
Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois Chicago, Chicago, IL, 60612, United States.
Six undescribed compounds, uvarirufols D and E, (+)-uvarigranol B, (-)-uvarigranol E, 6-acetoxy-5-hydroxy-7-methoxyflavanone and cherrevenaphthalene D, along with twelve known compounds, including polyoxygenated cyclohexenes, flavonoids, and lignans, were isolated from the methanol extract of Uvaria rufa stems. Their structures were elucidated by spectroscopic analyses and the absolute configurations were determined using electronic circular dichroism. Several isolates were evaluated for cytotoxic, antitubercular and anti-inflammatory potentials.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!