Functional sulfur-containing compounds 2. Synthesis of 3-chloropropyl and 4-chlorobutyl alkyl (phenyl) sulfones by the oxidative chlorination of 3-hydroxypropyl and 4-hydroxybutyl alkyl(phenyl) sulfides and sulfoxides
Oxidative Properties of Triflic Anhydride. Oxidation of Alcohols and Sulfides
作者:Valentine G. Nenajdenko、Pavel V. Vertelezkij、Andrej B. Koldobskij、Igor V. Alabugin、Elizabeth S. Balenkova
DOI:10.1021/jo9620270
日期:1997.4.1
The reaction of dimethyl sulfide with triflic anhydride leads to the formation of the corresponding dimethyl(trifluoromethanesulfonyl)sulfonium salt. The latter can be used in the mild oxidation of primary and secondary alcohols including unsaturated and natural ones to the corresponding carbonyl compounds in 34-75% yield. The reaction of various sulfides with triflic anhydride was studied. It was
Studies on Umami Taste. Synthesis of New Guanosine 5′-Phosphate Derivatives and Their Synergistic Effect with Monosodium Glutamate
作者:Paola Cairoli、Stefano Pieraccini、Maurizio Sironi、Carlo F. Morelli、Giovanna Speranza、Paolo Manitto
DOI:10.1021/jf072803c
日期:2008.2
A number of N2-alkyl and N2-acyl derivatives of guanosine5'-phosphate (GMP) have been synthesized and tested for their synergistic effect with monosodium L-glutamate (MSG), the prototypical substance imparting umami taste to savory-based foods. Capacities to enhance the taste intensity of MSG (gamma values) were estimated through subjective comparisons of MSG/nucleotide mixtures in water with appropriate
The invention relates to protein conjugates that contain a protein kinase containing a cysteine residue in the ATP binding site and an inhibitor that is covalently and irreversibly bonded to said cysteine residue, such that the activity of the protein kinase is irreversibly inhibited. The invention also relates to compounds that irreversibly inhibit protein kinases.