Biocatalytic Process Optimization for the Production of High‐Added‐Value 6‐O‐Hydroxy and 3‐O‐Hydroxy Glycosyl Building Blocks
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DOI: 10.1002/cctc.201601632
Abstract: A biocatalytic process to synthesize regioselective monohydroxy glycosyl building blocks has been optimized. Lipases immobilized on commercial supports were treated with water‐soluble carbodiimide (EDC) at different concentrations. In the presence of cosolvents, the stability of… read more here.
Keywords: biocatalytic process; hydroxy; glycosyl building; building blocks ... See more keywords
Chemoenzymatic Oxosulfonylation-Bioreduction Sequence for the Stereoselective Synthesis of β-Hydroxy Sulfones.
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DOI: 10.1002/cssc.202101313
Abstract: A series of optically active β-hydroxy sulfones has been obtained through an oxosulfonylation-stereoselective reduction sequence in aqueous medium. Firstly, β-keto sulfones were synthesized from arylacetylenes and sodium sulfinates to subsequently develop the carbonyl reduction in… read more here.
Keywords: hydroxy; hydroxy sulfones; sequence; synthesis ... See more keywords
Preparation, optimization and pharmacological evaluation of 99mTc- 4-hydroxy-3-(2-hydroxy-3-methoxybenzylideneamino) benzoic acid complex: as a novel potential radiopharmaceutical agent with hepatobiliary excretion
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DOI: 10.1007/s11033-018-4402-6
Abstract: Schiff base ligands are biologically active compounds in having antimicrobial, antiviral and antitumor activities etc. In this study, we have synthesized a Schiff base ligand namely 4-hydroxy-3-(2-hydroxy-3-methoxybenzylideneamino) benzoic acid, by reacting 3-amino-4-hydroxybenzoic acid and 2-hydroxy-3-methoxy… read more here.
Keywords: acid; hydroxy hydroxy; hydroxy; methoxybenzylideneamino benzoic ... See more keywords
New functionalized ditopic redox-active hydroxy-p-iminoquinone-type ligands and mercury(ii) complexes based on these ligands
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DOI: 10.1007/s11172-020-2722-x
Abstract: New bis-p-iminobenzoquinone ligands, in which two hydroxy-p-iminobenzoquinone moieties are bridged by various functionalized linkers, were synthesized by 1,4-addition of aromatic diamines to 3,6-di-tert-butyl-o-benzoquinone. The exchange reaction between potassium salts of new ligands and ethylmercury(ii) chloride… read more here.
Keywords: ligands mercury; mercury complexes; functionalized ditopic; hydroxy ... See more keywords
Identification of six tryptamine derivatives as designer drugs in illegal products
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DOI: 10.1007/s11419-020-00556-5
Abstract: Purpose To prevent the abuse of new designer drugs, Japan has declared 2385 substances and two plants as “Designated Substances” as of March 2020. Although the distribution of these substances has decreased over the past… read more here.
Keywords: six tryptamine; mass spectrometry; tryptamine derivatives; hydroxy ... See more keywords
NMR screening approach for discovery of new 6-methylpyridinone derivatives from the marine-derived fungus Leptosphaerulina sp.
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DOI: 10.1016/j.arabjc.2015.06.015
Abstract: Abstract By the method of 1 H NMR prescreening and tracing the diagnostic signals, 6-methylpyridinone derivatives, (8 R ,9 S )-dihydroisoflavipucine ( 1 ), (8 S ,9 S )-dihydroisoflavipucine ( 2 ), 3-(1-hydroxy-4-methyl-2-oxopentylidene)-6-methylpyridine-2,4(1 H ,3… read more here.
Keywords: methyl; fungus leptosphaerulina; nmr; hydroxy ... See more keywords
Determination of hydroxy metabolites of cocaine from hair samples and comparison with street cocaine samples.
Sign Up to like & getrecommendations! Published in 2018 at "Forensic science international"
DOI: 10.1016/j.forsciint.2018.04.007
Abstract: Drugs which are commonly smoked or sniffed (e.g. cocaine), can contaminate hair through smoke or dust; therefore testing for metabolites, especially hydroxy metabolites, is highly recommended. The presence of hydroxy metabolites in street-cocaine (COC) has… read more here.
Keywords: coc; street cocaine; hydroxy metabolites; hair ... See more keywords
Lesquerella FAD3-1 gene is responsible for the biosynthesis of trienoic acid and dienoic hydroxy fatty acids in seed oil
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DOI: 10.1016/j.indcrop.2019.04.008
Abstract: Abstract Lesquerella (Physaria fendleri) contains a major unusual hydroxy fatty acid, lesquerolic acid (14-hydroxy-eicos-cis-11-enoic acid, C20:1-OH), at 55–60% of seed oil which has industrial value. The remaining seed oil comprises mainly common fatty acids including… read more here.
Keywords: hydroxy; c18; pffad3; seed ... See more keywords
Interaction of hydroxy substituted dibenzoylmethanatoboron difluoride with hydrated ammonia in solution: A combined spectroscopic and computational study
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Molecular Structure"
DOI: 10.1016/j.molstruc.2018.08.016
Abstract: Abstract UV–Vis absorption spectroscopy and quantum chemistry are employed to study the spectral features of a new organoboron dye ortho-hydroxy dibenzoylmethanatoboron difluoride (OHDBMBF2). The compound shows promise for the detection of hydrated ammonia thanks to… read more here.
Keywords: hydroxy; dibenzoylmethanatoboron difluoride; hydrated ammonia; study ... See more keywords
Trading N and O. Part 4: Asymmetric synthesis of syn-β-substituted-α-amino acids
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DOI: 10.1016/j.tet.2018.04.071
Abstract: Abstract A total of nine enantiopure syn-β-substituted-α-amino acids have been synthesised, comprising both syn-β-hydroxy-α-amino acids and syn-β-fluoro-α-amino acids. The key step in the synthetic strategy towards these syn-β-substituted-α-amino acids involves a stereospecific rearrangement, which proceeds… read more here.
Keywords: syn substituted; amino acids; substituted amino; hydroxy ... See more keywords
Oxidative ring expansion of 3-hydroxy-3-phenacyloxindoles using phenyliodine diacetate and molecular iodine: Synthesis of 2-hydroxy-2-aryl/alkyl-2,3-dihydroquinolin-4(1H)-ones
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DOI: 10.1016/j.tetlet.2020.152631
Abstract: Abstract Oxidation of tertiary alcohol of the type 3-hydroxy-3-phenacyloxindoles using the combination of phenyliodine diacetate and molecular iodine in methanol results in oxidative cleavage of C2-C3 bond to form isocyanate as an intermediate with its… read more here.
Keywords: diacetate molecular; phenyliodine diacetate; hydroxy; phenacyloxindoles using ... See more keywords