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239088-19-8

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239088-19-8 Usage

Uses

Decyl(2-hydroxyethyl)-carbamic Acid 9H-Fluoren-9-ylmethyl Ester is used in the preparation of vancomycin-related antibacterial agents.

Check Digit Verification of cas no

The CAS Registry Mumber 239088-19-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,9,0,8 and 8 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 239088-19:
(8*2)+(7*3)+(6*9)+(5*0)+(4*8)+(3*8)+(2*1)+(1*9)=158
158 % 10 = 8
So 239088-19-8 is a valid CAS Registry Number.

239088-19-8Relevant articles and documents

Synthesis method of special-pulling universal intermediate (by machine translation)

-

, (2020/06/20)

To the invention, 9 - 2, 2, 6 tetramethylpiperidine oxide (TEMPO) is used as an oxidizing agent, the reaction temperature 6 - is lower, Fmoc-Cl is protected and oxidized to obtain N - (0 °C fluorenylmethoxycarbonyl) decyl aminoacetaldehyde. TEMPO oxidation is simple, the reaction temperature is mild, pH value and reaction temperature of the reaction liquid are controlled. (by machine translation)

Extra Sugar on Vancomycin: New Analogues for Combating Multidrug-Resistant Staphylococcus aureus and Vancomycin-Resistant Enterococci

Guan, Dongliang,Chen, Feifei,Xiong, Lun,Tang, Feng,Faridoon,Qiu, Yunguang,Zhang, Naixia,Gong, Likun,Li, Jian,Lan, Lefu,Huang, Wei

, p. 286 - 304 (2018/02/10)

Lipophilic substitution on vancomycin is an effective strategy for the development of novel vancomycin analogues against drug-resistant bacteria by enhancing bacterial cell wall interactions. However, hydrophobic structures usually lead to long elimination half-life and accumulative toxicity; therefore, hydrophilic fragments were also introduced to the lipo-vancomycin to regulate their pharmacokinetic/pharmacodynamic properties. Here, we synthesized a series of new vancomycin analogues carrying various sugar moieties on the seventh-amino acid phenyl ring and lipophilic substitutions on vancosamine with extensive structure-activity relationship analysis. The optimal analogues indicated 128-1024-fold higher activity against methicillin-susceptible S. aureus, vancomycin-intermediate resistant S. aureus (VISA), and vancomycin-resistant Enterococci (VRE) compared with that of vancomycin. In vivo pharmacokinetics studies demonstrated the effective regulation of extra sugar motifs, which shortened the half-life and addressed concerns of accumulative toxicity of lipo-vancomycin. This work presents an effective strategy for lipo-vancomycin derivative design by introducing extra sugars, which leads to better antibiotic-like properties of enhanced efficacy, optimal pharmacokinetics, and lower toxicity.

Process for preparing glycopeptide phosphonate derivatives

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, (2008/06/13)

Disclosed are processes for preparing glycopeptide phosphonate derivatives having an amino-containing side chain. Several of the process steps are conducted in a single reaction vessel without isolation of intermediate reaction products, thereby generating less waste and improving the overall efficiency and yield of the process.

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