These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Design, synthesis, and evaluation of duocarmycin O-amino phenol prodrugs subject to tunable reductive activation.
    Author: Lajiness JP, Robertson WM, Dunwiddie I, Broward MA, Vielhauer GA, Weir SJ, Boger DL.
    Journal: J Med Chem; 2010 Nov 11; 53(21):7731-8. PubMed ID: 20942408.
    Abstract:
    A series of N-acyl O-amino derivatives of seco-CBI-indole(2) are reported and examined as prototypical members of a unique class of reductively activated (cleaved) prodrugs of the duocarmycin and CC-1065 family of antitumor agents. These prodrugs were designed to be potentially preferentially activated in hypoxic tumor environments which carry an intrinsically higher concentration of "reducing" nucleophiles (e.g., thiols) capable of activating such derivatives by nucleophilic cleavage of a weak N-O bond. A remarkable range of stabilities and a resulting direct correlation with in vitro/in vivo biological potencies was observed for these prodrugs, even enlisting subtle variations in the electronic and steric environment around the weak N-O bond. An in vivo evaluation of several of the prodrugs demonstrates that some approach the potency and exceed the efficacy of the free drug itself (CBI-indole(2)), suggesting the prodrugs may offer an additional advantage related to a controlled or targeted release.
    [Abstract] [Full Text] [Related] [New Search]