Results 51 to 60 of about 27,599 (221)

Caesalpinbondin A, a Novel Diterpenoid Lactone With an Unprecedented Carbon Skeleton from the Seeds of Caesalpinia bonduc

open access: yesFrontiers in Chemistry, 2022
Graphical ...
Dong-Qing Fei   +11 more
doaj   +1 more source

Evaluation of Agave angustifolia as a Sustainable Alternative to Synthetic Pesticides: Phytochemical Composition and Multi‐Trophic Bioactivity

open access: yesFlavour and Fragrance Journal, EarlyView.
The pesticidal potential of Agave angustifolia by assessing its anti‐nematic, antimicrobial, and insecticidal activities, alongside phytochemical profiling. ABSTRACT Plant diseases caused by fungi, bacteria, nematodes, and viruses contribute significantly to annual crop losses and economic hardship. Reliance on chemical pesticides, over a thousand used
Rashika Tamta   +7 more
wiley   +1 more source

The Total Synthesis of (–)-Scabrolide A [PDF]

open access: yes, 2020
The first total synthesis of the norcembranoid diterpenoid scabrolide A is disclosed. The route begins with the synthesis of two chiral pool-derived fragments, which undergo a convergent coupling to expediently introduce all 19 carbon atoms of the ...
Hafeman, Nicholas J.   +5 more
core  

New Sesquiterpenoids and a Diterpenoid from Alpinia oxyphylla

open access: yesMolecules, 2015
The new compounds 2-methyl-6-isopropyl-7-hydroxymethyl naphthalene (1), oxyphyllenone H (2), epi-oxyphyllenone (6), (E)-labda-12,14-dien-15(16)-olide-17-oic acid (3), and two new natural products 4 and 5 were isolated from the ethyl acetate part of 95 ...
Lei Hou   +6 more
doaj   +1 more source

Diterpenoids from the aerial parts of Isodon macrocalyx

open access: yesGuangxi Zhiwu, 2023
To study the constituents of Isodon macrocalyx, thirteen diterpenoids were isolated and purified from the aerial parts of I. macrocalyx by means of various column chromatographic techniques, including silica gel, ODS, Sephadex LH-20 and RP-C18 pre-HPLC ...
Yanling CHANG   +6 more
doaj   +1 more source

Secondary Metabolites with Antimycobacterial Activities from One Actinobacteria: Herbidospora yilanensis

open access: yesMolecules, 2021
The cultivation of one actinobacteria strain, Herbidospora yilanensis, was isolated from sediment samples collected from Yilan County City in Taiwan, resulting in the isolation of five previously undescribed compounds: herbidosporayilanensins A–E (1–5 ...
Ming-Jen Cheng   +4 more
doaj   +1 more source

Abietic Acid Enhances the Sedative Activity of Diazepam: In vivo Approach along with Receptor Binding Affinity and Molecular Interaction with the GABAergic System

open access: yesChemistryOpen, EarlyView.
Abietic acid (AA) reveals potent sedative potential by expressing fast sleeping onset and increased sleeping duration compare to the control group in thiopental sodium induced sleeping mice. The compound also exhibited notable binding affinity (–7.9 kcal/mol) toward GABAA receptors.
Meher Afroz   +10 more
wiley   +1 more source

Functional characterization and structural bases of two class I diterpene synthases in pimarane-type diterpene biosynthesis

open access: yesCommunications Chemistry, 2021
Pimaranes are diterpenoid natural products with poorly characterised biosynthetic pathways. Here pimaranetype diterpenoid synthases are functionally and structurally characterised and shown to exploit distinct modes of intermediate stabilisation.
Baiying Xing   +14 more
doaj   +1 more source

Comparative Transcriptomics and Metabolites Analysis of Two Closely Related Euphorbia Species Reveal Environmental Adaptation Mechanism and Active Ingredients Difference

open access: yesFrontiers in Plant Science, 2022
Roots of Euphorbia fischeriana and Euphorbia ebracteolata are recorded as the source plant of traditional Chinese medicine “Langdu,” containing active ingredients with anticancer and anti-AIDS activity.
Han Zheng   +13 more
doaj   +1 more source

Lecanicillium aphanocladii: a biocontrol agent against insect pests and phytopathogens

open access: yesPest Management Science, EarlyView.
Recent research findings on the biocontrol potential of Lecanicillium aphanocladii fungus against insect‐pests and plant diseases were highlighted. This review indicates that several L. aphanocladii strains show great potential to be developed as multipurpose biocontrol agents active against several insect‐pests, plant diseases and plant parasitic ...
Qianhe Liu   +2 more
wiley   +1 more source

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