Peptide derivatives containing one or more substituents separately linked by an amide, amino or sulfonamide bond to an amino group on either the N-terminal end or side chain of a biologically active peptide moiety. The peptide derivatives have relatively enhanced biological activity when compared to the corresponding peptide alone.
肽衍生物含有一个或多个取代基,分别通过酰胺键、氨基键或磺酰胺键与生物活性肽分子 N 端或侧链上的氨基相连。与单独的相应肽相比,肽衍生物的生物活性相对更强。
(EN) Peptide derivatives containing one or more substituents separately linked by an amide, amino or sulfonamide bond to an amino group on either the N-terminal end or side chain of a biologically active peptide moiety. The peptide derivatives have relatively enhanced biological activity when compared to the corresponding peptide alone.(FR) L'invention concerne des dérivés peptidiques contenant un ou plusieurs substituants liés chacun par une liaison amide, amino ou sulfonamide à un groupe amino, soit sur l'extrémité N-terminale, soit sur la chaîne latérale d'une fraction peptidique biologiquement active. Les dérivés peptidiques ont une activité biologique relativement plus importante lorsqu'on les compare au peptide correspondant seul.
Syntheses of Novel Hybrid Vitamin C Derivatives: Stability and Biological Activity
作者:Kazuo Morisaki、Shoichiro Ozaki
DOI:10.1246/bcsj.69.725
日期:1996.3
L-ascorbic acid (vitamin C) derivatives linking other biologically active substances glycolic acid, myo-inositol, and α-tocopherol (vitamin E) at the C-2 or C-3 hydroxyl group were synthesized, and their thermal stability and inhibitory activities against tyrosinase-catalyzed melanin formation, active oxygen species (AOS), and free radicals were evaluated in vitro. Among these derivatives, 2-O-carboxymethylascorbic