LiNTf2 in the reaction of lactones with amines is able to activate cyclic esters towards ring opening, thus leading to clean open-chain amides under mild conditions and using a stoichiometric amount of amine. The generality of the method was demonstrated by a range of selected lactones and amines.
A prodrug system for hydroxylamines based on esterase catalysis
作者:Ana Conejo-Garcia、Christopher J. Schofield
DOI:10.1016/j.bmcl.2005.06.026
日期:2005.9
The synthesis and reactivity of hydroxy hydroxamates as models for a prodrug form of hydroxylamine are described. gamma-Hydroxy hydroxamates were found to enable hydroxylamine release via lactonisation. Hydroxamates were found to undergo esterase catalysed hydrolysis. (c) 2005 Elsevier Ltd. All rights reserved.