Pyrimidine Disaccharide Nucleosides. Synthesis of an Amino Sugar Disaccharide Nucleoside

Calvin L. Stevens; Peter Blumbergs

doi:10.1021/jo01019a052

Microwave Assisted Synthesis of Cationic Amino Sugar Surfactants

Tenside Surfactants Detergents ◽

10.3139/113.110684 ◽

2020 ◽

Vol 57 (3) ◽

pp. 265-272

Author(s):

Priya S. Singh ◽

Aizaz Shaikh ◽

Aditi Deshmukh ◽

Amit P. Pratap

Keyword(s):

Amino Sugar ◽

Microwave Assisted Synthesis ◽

Microwave Assisted

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Divergent Accumulation of Microbial Residues and Amino Sugars in Loess Soil after Six Years of Different Inorganic Nitrogen Enrichment Scenarios

Applied Sciences ◽

10.3390/app11135788 ◽

2021 ◽

Vol 11 (13) ◽

pp. 5788

Author(s):

Dominic Kwadwo Anning ◽

Zhilong Li ◽

Huizhen Qiu ◽

Delei Deng ◽

Chunhong Zhang ◽

...

Keyword(s):

Plant Biomass ◽

Inorganic Nitrogen ◽

Amino Sugar ◽

N Fertilization ◽

Biochemical Properties ◽

Sugar Accumulation ◽

Amino Sugars ◽

N Enrichment ◽

Over Time ◽

Microbial Residues

Amino sugars are key microbial biomarkers for determining the contribution of microbial residues in soil organic matter (SOM). However, it remains largely unclear as to what extent inorganic nitrogen (N) fertilization can lead to the significant degradation of SOM in alkaline agricultural soils. A six-year field experiment was conducted from 2013 to 2018 to evaluate the effects of chronic N enrichment on microbial residues, amino sugars, and soil biochemical properties under four nitrogen (urea, 46% N) fertilization scenarios: 0 (no-N, control), 75 (low-N), 225 (medium-N), and 375 (high-N) kg N ha−1. The results showed that chronic N enrichment stimulated microbial residues and amino sugar accumulation over time. The medium-N treatment increased the concentration of muramic acid (15.77%), glucosamine (13.55%), galactosamine (18.84%), bacterial residues (16.88%), fungal residues (11.31%), and total microbial residues (12.57%) compared to the control in 2018; however, these concentrations were comparable to the high-N treatment concentrations. The ratio of glucosamine to galactosamine and of glucosamine to muramic acid decreased over time due to a larger increase in bacterial residues as compared to fungal residues. Microbial biomass, soil organic carbon, and aboveground plant biomass positively correlated with microbial residues and amino sugar components. Chronic N enrichment improved the soil biochemical properties and aboveground plant biomass, which stimulated microbial residues and amino sugar accumulation over time.

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ChemInform Abstract: THE CHROMOUS CHLORIDE PROMOTED ADDITION OF N-HALOAMIDES TO OLEFINS. V. THE ADDITION OF N-CHLOROAMIDES TO ENOL ETHERS- SYNTHESIS OF ACYLOXY AND ACYL DERIVATIVES OF α-AMINO ACETALS AND KETALS (ALDEHYDES AND KETONES) AND OF 2-AMINO SUGAR

Chemischer Informationsdienst ◽

10.1002/chin.197821152 ◽

1978 ◽

Vol 9 (21) ◽

Author(s):

H. DRIGUEZ ◽

J.-P. VERMES ◽

J. LESSARD

Keyword(s):

Amino Sugar ◽

Enol Ethers ◽

Aldehydes And Ketones ◽

Derivatives Of ◽

Chromous Chloride ◽

Acyl Derivatives

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Polymers Having Pendant Amino Sugar Groups: Synthesis and Bioactivity of Polymers Having Free Glucosamine and N-Acetylglucosamine

Polymer Journal ◽

10.1295/polymj.18.479 ◽

1986 ◽

Vol 18 (6) ◽

pp. 479-485 ◽

Cited By ~ 8

Author(s):

Yoshiyuki Koyama ◽

Akira Yoshida ◽

Keisuke Kurita

Keyword(s):

Amino Sugar

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Isolation and characterization of an amino sugar-rich glycopeptide from the surface layer glycoprotein of Thermoanaerobacterium thermosaccharolyticum E207-71

Carbohydrate Research ◽

10.1016/s0008-6215(96)90150-0 ◽

1996 ◽

Vol 295 ◽

pp. 245-253 ◽

Cited By ~ 12

Author(s):

Eleonora Altman ◽

Christina Schäffer ◽

Jean-Robert Brisson ◽

Paul Messner

Keyword(s):

Surface Layer ◽

Amino Sugar ◽

Thermoanaerobacterium Thermosaccharolyticum ◽

Isolation And Characterization

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Synthesis and characterization ofN-vinylpyrrolidone-tert-butyl methacrylate-methacrylic acid terpolymers having amino sugar or bioactive amino side compounds

Journal of Polymer Science Part A Polymer Chemistry ◽

10.1002/pola.20347 ◽

2004 ◽

Vol 43 (1) ◽

pp. 18-27 ◽

Cited By ~ 12

Author(s):

Gerardo Martínez ◽

Marta Fernández-García ◽

Manuel Sánchez-Chaves

Keyword(s):

Methacrylic Acid ◽

Amino Sugar ◽

Butyl Methacrylate ◽

Synthesis And Characterization ◽

Tert Butyl

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EFFECT OF PERACETIC ACID OXIDATION ON N-CONTAINING COMPONENTS OF HUMIC MATERIALS

Canadian Journal of Soil Science ◽

10.4141/cjss80-059 ◽

1980 ◽

Vol 60 (3) ◽

pp. 541-548 ◽

Cited By ~ 19

Author(s):

M. SCHNITZER ◽

D. A. HINDLE

Keyword(s):

Amino Acid ◽

Peracetic Acid ◽

Amino Sugar ◽

Chemical Oxidation ◽

Acid Oxidation ◽

Mild Oxidation ◽

Total N ◽

Different Types ◽

Humic Materials ◽

Insight Into

Three humic and one fulvic acid were degraded by mild chemical oxidation with peracetic acid, with special emphasis on the effects of this type of oxidation on N-containing components. The different types of N that were considered were NH4+-N, amino acid-N, amino sugar-N, NO2−-N + NO3−-N, and by difference from total N, "unknown" N. The behaviour toward mild chemical oxidation of all four preparations was essentially similar: there were decreases in mino acid-N, amino sugar-N and "unknown" N, increases in NH4+-N, NO2−-N + NO3−-N with one material, and in N-gases. The "unknown" N was not inert. Between 16.6 and 59.1% of the latter appeared to be converted, as a result of mild chemical oxidation, to NH3 and N-gases which were expelled from the systems. The results presented provide an insight into what happens to N-containing humic components as a result of mild oxidation.

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