Diterpenes and umbelliferone derivatives from Haplopappus deserticola
Phytochemistry, 1990 Abstract The aerial parts of Haplopappus deserticola afforded three ent -labdane and one labdane derivative as well as a nor - ent -labdane. Furthermore, in addition to three known umbelliferone derivatives, a dimeric coumarin was isolated. The structures were elucidated by high field 1 H NMR spectroscopy.
Zdero, C., Bohlmann, F., Niemeyer, H. M.
openaire +2 more sources
IP3 production in the hypersensitive response of lemon seedlings against Alternaria alternata involves active protein tyrosine kinases but not a G-protein [PDF]
, 2005 http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602005000100011&lng=es&nrm=isoIP3 increase and de novo synthesis of scoparone are produced in the hypersensitive response (HR) of lemon seedlings against the fungus Alternaria alternata.
Ortega, Ximena +2 more
core +2 more sources
Frontiers in Microbiology, 2017 Ralstonia solanacearum is one of the most devastating phytopathogens and causes bacterial wilt, which leads to severe economic loss due to its worldwide distribution and broad host range.
Liang Yang +10 more
doaj +1 more source
Enzymatic studies of glucuronide formation in impaired liver. II. Activating effect of boiled liver extract on liver glucuronide formation [PDF]
, 1962 The effect of the boiled liver extract on the velocity of 4-methyl umbelliferone lucuronide formation by mouse liver homogenate was studied. The results were as follows: 1.
Taketa, Kazuhisa
core +1 more source
Comparison of fluorogenic substrates for the detection of faecal indicator bacteria in water samples using a continuous fluorometric assay. [PDF]
, 2013 At present standard methods employed for the microbiological monitoring of bathing waters require at least 18 hours to perform and are based on culturing techniques. This is a huge drawback when immediate action is required.
Briciu Burghina, Ciprian Constantin +2 more
core
Mechanism and Application of Baker–Venkataraman O→C Acyl Migration Reactions [PDF]
, 2014 This literature review focuses on the O→C acyl migration of aryl esters to yield the corresponding 1,3-dicarbonyl products—a reaction known as the Baker–Venkataraman rearrangement—and outlines their subsequent transformations.
Ameen, Dana, Snape, Timothy James
core +1 more source
Umbelliferone from tea leaves [PDF]
Chemistry of Natural Compounds, 1974 K. G. Mikaberidze, I. I. Moniava
openaire +1 more source
Umbelliferone aminoalkyl derivatives as inhibitors of human oxidosqualene-lanosterol cyclase
Journal of Enzyme Inhibition and Medicinal Chemistry, 2009 Human and murine lanosterol synthases (EC 5.4.99.7) were studied as targets of a series of umbelliferone aminoalkyl derivatives previously tested as inhibitors of oxidosqualene cyclases from other eukaryotes. Tests were carried out on cell cultures of human keratinocytes and mouse 3T3 fibroblasts incubated with radiolabeled acetate, and on homogenates ...
OLIARO BOSSO, Simonetta +6 more
openaire +3 more sources
2-Oxo-2H-chromen-7-yl 3-methylbutanoate
IUCrDataThe title compound, C14H14O4, was synthesized by O-acylation of umbelliferone with isovaleryl chloride in the presence of diethyl ether as a solvent and pyridine as a base. The side chain moiety i.e.
Akoun Abou +4 more
doaj +1 more source
Revista do Instituto de Medicina Tropical de São Paulo, 2011 The effect of sub-lethal feeding of bait formulations containing molluscicidal component of Ferula asafoetida (ferulic acid, umbelliferone), Syzygium aromaticum (eugenol) and Carum carvi (limonene) on biochemical changes in the ovotestis of snail Lymnaea
Pradeep Kumar +2 more
doaj +1 more source