One Pot Synthesis and Antibacterial Activity of (4Z)-4-Benzylidene-1-methyl-2-styryl-1H-imidazol-5(4H)-one
作者:V. Anitha Rani、Y. Bharathi Kumari
DOI:10.14233/ajchem.2016.19763
日期:——
Green synthesis of (4Z)-4-benzylidene-1-methyl-2-styryl-1H-imidazol-5(4H)-one derivatives have been developed in good yields and tested for their antibacterial activities against Escherichia coli, Providencia aeruginosa, Pseudomonas azotogensis and Baccilus subtillis. Some of the synthesized compounds possess good activity against Escherichia coli and Baccilus subtillis compared to standard drug streptomycin.
Easily accessible Ac-(Z)-ΔPhe-NHMe was photoisomerized to so far unknown Ac-(E)-ΔPhe-NHMe. Some parameters of the process leading to a diastereomeric mixture of ratio 90(Z) : 10(E) have been tested and the photoisomerization has been carried out on a preparative milligram scale. The isomers were separated via crystallization followed by preparative HPLC.
Synthesis of Alaninyl andN-(2-Aminoethyl)glycinyl Amino Acid Derivatives Containing the Green Fluorescent Protein Chromophore in Their Side Chains for Incorporation into Peptides and Peptide Nucleic Acids
作者:Thorsten Stafforst、Ulf Diederichsen
DOI:10.1002/ejoc.200600729
日期:2007.2
Artificial aminoacids carrying either the chromophore of the GreenFluorescentProtein (GFP) or a modification as their sidechains have been synthesized: Boc-protected alaninylderivatives and Fmoc-protected N-(2-aminoethyl)glycine-functionalized aminoacids were obtained and could be applied in solid-phase peptidesynthesis. The incorporation of the GFP chromophore into N-(2-aminoethyl)glycine-PNA