Selective functionalization at N<sup>2</sup>-position of guanine in oligonucleotides <i>via</i> reductive amination
作者:Bapurao A. Bhoge、Purnima Mala、Jo S. Kurian、Varadharajan Srinivasan、Ishu Saraogi
DOI:10.1039/d0cc05492e
日期:——
Chemo- and site-specific modifications in oligonucleotides have wide applicability as mechanistic probes in chemical biology. However, methods that label specific sites in nucleic acids are scarce, especially for labeling DNA/RNA from biological or enzymatic sources rather than synthetic ones. Here we have employed a classical reaction, reductive amination, to selectively functionalize the N2-amine
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