Results 71 to 80 of about 764 (192)

Long‐term cropping system and manure effects on soil health parameters and associated soil‐borne pathogens

open access: yesSoil Science Society of America Journal, Volume 89, Issue 3, May/June 2025.
Abstract Soil‐borne pathogens reduce the performance of key food crops in sub‐Saharan Africa. Diversified cropping and nutrient management can enhance soil and plant health, limiting pathogen damage. To examine how management and soil health changes influence soil‐borne pathogens, we leveraged an 18‐year field trial in western Kenya, evaluating ...
Joyce Mutai   +6 more
wiley   +1 more source

A rare isoflavone-quinone and a new flavanone from the roots of Dalbergia stipulacea Roxb.

open access: yes, 2022
Two previously undescribed compounds, namely dalpulapans F and G (1 and 2), along with 11 known compounds were isolated from the MeOH crude extract of the roots of Dalbergia stipulacea.
Chavi Yenjai (1715161)   +7 more
core   +1 more source

Naphthyl‐Based Chalcone Derivatives: A Multifaceted Player in Medicinal Chemistry

open access: yesChemistrySelect, Volume 9, Issue 19, May 21, 2024.
This review insights the pharmacological activity of naphthyl substituted chalcone derivatives. The anticancer and antibacterial activities were more explored than other activities. The presence of methoxy and naphthyl moiety enhanced the anticancer activity. The antibacterial activity was increased by electron withdrawing groups.
Priyanka Mahesha, Nitinkumar S. Shetty
wiley   +1 more source

Antiproliferative Activities and SwissADME Predictions of Physicochemical Properties of Carbonyl Group‐Modified Rotenone Analogues

open access: yesChemistryOpen, Volume 13, Issue 1, January 2024.
Rotenone derivatives were synthesized through modifications of the carbonyl group and their antiproliferative activities were evaluated against various cancer cell lines (MCF‐7, A549, and HCT116). The physicochemical properties and drug‐likeness of the derivatives were evaluated using the SwissADME webtool.
Rajelle D. Hernandez   +4 more
wiley   +1 more source

Alkyne Carbonyl Metathesis As a Means To Make 4‑Acyl Chromenes: Syntheses of (±)-Deguelin and (±)-Munduserone

open access: yes, 2015
A highly convergent synthetic approach to rotenoid natural products is described. Successful pairing of two building blocks for Sonogashira cross-coupling and intramolecular alkyne carbonyl metathesis allows ready access to 4-acylchromene, a key ...
Maloy Nayak (1478848)   +1 more
core   +1 more source

Structural Elucidation and Chemical Conversion of Amorphispironone, a Novel Spironone from Amorpha fruticosa, to Rotenoids. [PDF]

open access: yes, 1993
To search for possible antiumor promoters, we carried out an investigation of the leaves of Amorpha fruticosa L. (Leguminosae). The novel spironone type rotenoid, amorphispironone (1), isolated together with four known rotenoids, tephrosin (2 ...
Li, Leping   +9 more
core   +1 more source

Chromosome‐level genome assembly of the mangrove associate Derris trifoliata provides insights into adaptive evolution and rotenoid biosynthesis

open access: yes
Derris trifoliata Lour. is a common mangrove‐associated legume important for coastal ecosystem stability and serves as a natural source of rotenoids.
Hui Feng   +7 more
core   +1 more source

Two new rotenoid glycosides from the rhizomes of Stemona curtisii Hook. f

open access: yes
Two new rotenoid glycosides named stemonal 11-O-β-D-glucopyranoside and 6-O-methylstemonal 11-O-β-D-glucopyranoside together with ten known metabolites were isolated from the rhizomes of Stemona curtisii. The chemical structures of the new compounds were
Warinthorn Chavasiri (551969)   +7 more
core   +1 more source

Isoflavones and Rotenoids from the Leaves of Millettia brandisiana

open access: yesChemical and Pharmaceutical Bulletin, 2008
A new isoflavone, 4'-gamma,gamma-dimethylallyloxy-5,7,2',5'-tetramethoxyisoflavone, brandisianin A (1), was isolated from the leaves of Millettia brandisiana, along with one synthetically known isoflavone, 7,4'-di-O-prenylgenistein (2) and twelve known compounds. The structures were elucidated on the basis of extensive spectroscopic analysis.
Pancharoen, Orasa   +3 more
openaire   +3 more sources

7a-O-methyldeguelol, a modified rotenoid with an open ring-C, from the roots of Derris trifoloata

open access: yes, 2005
From the acetone extract of the roots of Derris trifoliata an isollavonoid derivative, named 7a-O- methyldeguelol, a modified rotenoid with an open ring-C, representing a new sub-class of isollavonoids (the sub-class is here named as rotenoloid), was ...
Heydenreich, Matthias (Dr.)   +8 more
core  

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