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179.581 Aktuelle Fachpublikationen von American Chemical Society Publications

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Heterologous and High Production of Ergothioneine in Escherichia coli

15.01.2018 | Ryo Osawa; Tomoyuki Kamide; Yasuharu Satoh; Yusuke Kawano; Iwao Ohtsu; Tohru Dairi, Journal of Agricultural and Food Chemistry, 2018

Ergothioneine (ERG) is a histidine-derived thiol compound suggested to function as an antioxidant and cytoprotectant in humans. Therefore, experimental trials have been conducted applying ERG from mushrooms in dietary supplements and as a cosmetic additive. However, this method of producing ERG ...

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Production of Antifungal p-Aminobenzoic Acid in Lysobacter antibioticus OH13

12.01.2018 | Pedro Laborda; Yangyang Zhao; Jun Ling; Rongxian Hou; Fengquan Liu, Journal of Agricultural and Food Chemistry, 2018

Among Lysobacter species, Lysobacter antibioticus has been demonstrated to be an interesting source of antimicrobial metabolites for the biocontrol of plant diseases. Although the antibacterial activity was attributed to N-oxide phenazines, the active compounds involved in the antifungal function ...

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Bidirectional Synthesis of 6-Acetoxy-5-hexadecanolide, the Mosquito Oviposition Pheromone of Culex quinquefasciatus, from a C2-Symmetric Building Block Using Olefin Metathesis Reactions

12.01.2018 | Bernd Schmidt; Monib H. Petersen; Diana Braun, The Journal of Organic Chemistry, 2018

(5R,6S)-6-Acetoxy-5-hexadecanolide (MOP) is the oviposition pheromone of the mosquito Cx. quinquefasciatus, a vector of pathogens causing a variety of tropical diseases. We describe and evaluate herein three syntheses of MOP starting from mannitol-derived (3R,4R)-hexa-1,5-diene-3,4-diol. This ...

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Bidirectional Synthesis of 6-Acetoxy-5-hexadecanolide, the Mosquito Oviposition Pheromone of Culex quinquefasciatus, from a C2-Symmetric Building Block Using Olefin Metathesis Reactions

12.01.2018 | Bernd Schmidt; Monib H. Petersen; Diana Braun, The Journal of Organic Chemistry, 2018

(5R,6S)-6-Acetoxy-5-hexadecanolide (MOP) is the oviposition pheromone of the mosquito Cx. quinquefasciatus, a vector of pathogens causing a variety of tropical diseases. We describe and evaluate herein three syntheses of MOP starting from mannitol-derived (3R,4R)-hexa-1,5-diene-3,4-diol. This ...

mehr

A Constrained Tetrapeptide as a Model of Cu(I) Binding Sites Involving Cu4S6 Clusters in Proteins

12.01.2018 | Edit Mesterházy; Colette Lebrun; Attila Jancsó; Pascale Delangle, Inorganic Chemistry, 2018

Peptide design is an efficient strategy to create relevant models of natural metal binding sites found in proteins. The two short tetrapeptides Ac-Cys-dPro-Pro-Cys-NH2 (CdPPC) and Ac-Cys-Pro-Gly-Cys-NH2 (CPGC) were synthesized and studied as mimics of Cu(I) binding sites involved in Cu ...

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A Constrained Tetrapeptide as a Model of Cu(I) Binding Sites Involving Cu4S6 Clusters in Proteins

12.01.2018 | Edit Mesterházy; Colette Lebrun; Attila Jancsó; Pascale Delangle, Inorganic Chemistry, 2018

Peptide design is an efficient strategy to create relevant models of natural metal binding sites found in proteins. The two short tetrapeptides Ac-Cys-dPro-Pro-Cys-NH2 (CdPPC) and Ac-Cys-Pro-Gly-Cys-NH2 (CPGC) were synthesized and studied as mimics of Cu(I) binding sites involved in Cu ...

mehr

Syntheses of (−)-Tripterifordin and (−)-Neotripterifordin from Stevioside

12.01.2018 | Shoji Kobayashi; Keisuke Shibukawa; Yoshiki Hamada; Takuma Kuruma; Asako Kawabata; Araki Masuyama, The Journal of Organic Chemistry, 2018

We report short syntheses of (−)-tripterifordin and (−)-neotripterifordin, potent inhibitors of HIV replication, from stevioside, a natural sweetener used worldwide. The key transformations are reduction at C13 through the formation of a tertiary chloride and subsequent three-step lactonization ...

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Syntheses of (−)-Tripterifordin and (−)-Neotripterifordin from Stevioside

12.01.2018 | Shoji Kobayashi; Keisuke Shibukawa; Yoshiki Hamada; Takuma Kuruma; Asako Kawabata; Araki Masuyama, The Journal of Organic Chemistry, 2018

We report short syntheses of (−)-tripterifordin and (−)-neotripterifordin, potent inhibitors of HIV replication, from stevioside, a natural sweetener used worldwide. The key transformations are reduction at C13 through the formation of a tertiary chloride and subsequent three-step lactonization ...

mehr

Experimental Investigation of CO2 Hydrate Formation in the Water Containing Graphite Nanoparticles and Tetra-n-butyl Ammonium Bromide

12.01.2018 | Shidong Zhou; Kun Jiang; Yongli Zhao; Yuandao Chi; Shuli Wang; Guozhong Zhang, Journal of Chemical & Engineering Data, 2018

The effects of tetra-n-butyl ammonium bromide (TBAB) and graphite nanoparticles (GN) on phase equilibrium curves, gas consumption, induction time, and ratio of water to hydrate conversion were investigated in this work. Aqueous solutions of the mixture of TBAB and GN with three concentrations of ...

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Experimental Investigation of CO2 Hydrate Formation in the Water Containing Graphite Nanoparticles and Tetra-n-butyl Ammonium Bromide

12.01.2018 | Shidong Zhou; Kun Jiang; Yongli Zhao; Yuandao Chi; Shuli Wang; Guozhong Zhang, Journal of Chemical & Engineering Data, 2018

The effects of tetra-n-butyl ammonium bromide (TBAB) and graphite nanoparticles (GN) on phase equilibrium curves, gas consumption, induction time, and ratio of water to hydrate conversion were investigated in this work. Aqueous solutions of the mixture of TBAB and GN with three concentrations of ...

mehr

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