Results 1 to 10 of about 167,233 (404)
Stereochemistry and Vitalism [PDF]
Nature, 1898 ALTHOUGH Prof. Japp has already replied to the criticisms which have appeared in NATURE on his address to the Chemical Section of the British Association, we should be glad, in view of the interest taken in the matter, and also because we have been investigating externally compensated and optically active compounds for some years past, if you could ...
Kipping, F. Stanley, Pope, William J.
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Stereocontrolled synthesis and nuclear magnetic resonance analysis of boranophosphate/phosphate chimeric oligonucleotides [PDF]
Royal Society Open ScienceThis report describes the stereoselective synthesis of boranophosphate/phosphate (PB/PO) chimeric oligodeoxynucleotides (ODNs) and the nuclear magnetic resonance (NMR) analysis of oligomers containing PB linkages.
Kiyoshi Kakuta +4 more
doaj +2 more sources
THE STEREOCHEMISTRY OF FUMAGILLIN [PDF]
Proceedings of the National Academy of Sciences, 1962 D. Stanley Tarbell, John R. Turner
openaire +4 more sources
Stereochemistry of N-Acyl-5H-dibenzo[b,d]azepin-7(6H)-ones
Molecules, 2023 The stereochemical properties of N-acyl-5H-dibenzo[b,d]azepin-7(6H)-ones (2a–c), which inhibit potassium channels in T cells, were examined by freezing their conformational change due to 4-methyl substitution.
Arisa Chiba +8 more
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A unique bacteriohopanetetrol stereoisomer of marine anammox [PDF]
, 2020 Anaerobic ammonium oxidation (anammox) is a major process of bioavailable nitrogen removal from marine systems. Previously, a bacteriohopanetetrol (BHT) isomer, with unknown stereochemistry, eluting later than BHT using high performance liquid ...
Alex Charlton, E. +14 more
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Synthesis of New C-3 Substituted Kynurenic Acid Derivatives
Molecules, 2020 The application of kynurenic acid (KYNA) as an electron-rich aromatic system in the modified Mannich reaction has been examined. The extension possibility of the reaction was tested by using amines occurring in a number of bioactive products, such as ...
Bálint Lőrinczi +3 more
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Substrate control in stereoselective lanthionine biosynthesis. [PDF]
, 2015 Enzymes are typically highly stereoselective catalysts that enforce a reactive conformation on their native substrates. We report here a rare example in which the substrate controls the stereoselectivity of an enzyme-catalysed Michael-type addition ...
Houk, KN +3 more
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Diels–Alder reaction of β-fluoro-β-nitrostyrenes with cyclic dienes
Beilstein Journal of Organic Chemistry, 2021 The Diels–Alder reaction of β-fluoro-β-nitrostyrenes with cyclic 1,3-dienes was investigated. A series of novel monofluorinated norbornenes was prepared in up to 97% yield.
Savva A. Ponomarev +7 more
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Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
Molecules, 2019 By direct coupling 7-azaindole and cyclic imines, such as 3,4-dihydroisoquinoline, 6,7-dihydrothieno[3,2-c]pyridine, 3,4-dihydro-β-carboline, and 4,5-dihydro-3H-benz[c]azepine, new 3-substituted 7-azaindole derivatives have been synthesized.
Khadija Belasri +2 more
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