Results 11 to 20 of about 6,648 (299)
A procedure for the preparation and isolation of nucleoside-5’-diphosphates
Tris[bis(triphenylphosphoranylidene)ammonium] pyrophosphate (PPN pyrophosphate) was used in the SN2 displacements of the tosylate ion from 5’-tosylnucleosides to afford nucleoside-5’-diphosphates. Selective precipitation permitted the direct isolation of
Heidi J. Korhonen +2 more
doaj +3 more sources
Tanacetum cinerariifolium flowers synthesize six pyrethrins that function as effective insecticides. trans-Chrysanthemol is an early intermediate in the synthesis of the monoterpene moiety of pyrethrins.
Wei Li +8 more
doaj +1 more source
Terpenoids constitute the largest class of natural products with complex structures, essential functions, and versatile applications. Creation of new building blocks beyond the conventional five-carbon (C5) units, dimethylallyl diphosphate (DMAPP) and ...
Chen-Yang Xia +5 more
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Isopentenyl Diphosphate Isomerase. Mechanism-Based Inhibition by Diene Analogues of Isopentenyl Diphosphate and Dimethylallyl Diphosphate [PDF]
Isopentenyl diphosphate isomerase (IDI) catalyzes the interconversion of isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP). This is an essential step in the mevalonate entry into the isoprenoid biosynthetic pathway. The isomerization catalyzed by type I IDI involves protonation of the carbon-carbon double bond in IPP or DMAPP to form ...
Wu, Zheng +2 more
openaire +3 more sources
Formation of Diphosphates. A NMR Study on the Mechanism and Stereochemistry of Diphosphate Formation from Chiral Dioxaphosphorinanes [PDF]
During the use of chiral 2-oxo-1,3,2-dioxaphosphorinanes as derivatizing reagents in the enantiomeric excess determination of amines, alcohols, and unprotected amino acids, minor traces of side reaction products were observed by 1H and 31P NMR ...
Zijlstra, Robert W.J. +15 more
core +3 more sources
Investigation of Pyrophosphates KYP2O7Co-Doped with Lanthanide Ions Useful for Theranostics
Diphosphate compounds (KYP2O7) co-doped with Yb3+ and Er3+ ions were obtained by one step urea assisted combustion synthesis. The experimental parameters of synthesis were optimized using an experimental design approach related to co-dopants ...
Adam Watras +5 more
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Nucleoside analogs require three phosphorylation steps catalyzed by cellular kinases to give their triphosphorylated metabolites. Herein, the synthesis of two types of triphosphate prodrugs of different nucleoside analogs is disclosed.
Xiao Jia, Dominique Schols, Chris Meier
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A mixture of sugar diphosphates is produced in reactions between small aldehyde phosphates catalysed by layered double hydroxide (LDH) clays under plausibly prebiotic conditions.
Harold S. Bernhardt
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Prenyldiphosphate synthases catalyze the reaction of allylic diphosphates with one or more isopentenyl diphosphate molecules to form compounds such as farnesyl diphosphate, used in, e.g., sterol biosynthesis and protein prenylation, as well as longer ...
Melissa A. Sleda +9 more
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Transcriptional profile of genes involved in the production of terpenes and glyceollins in response to biotic stresses in soybean [PDF]
Terpenes produced by plants comprise a diverse range of secondary metabolites, including volatile organic compounds (VOCs). Terpene VOC production may be altered after damage or by biological stimuli such as bacterial, fungal and insects, and subsequent ...
Talitta Regina Parmezan +9 more
doaj +1 more source

