Efficient synthesis of esters containing tertiary amine functionalities via active cyanomethyl ester intermediates
作者:Camille Bouillon、Gilles Quéléver、Ling Peng
DOI:10.1016/j.tetlet.2009.05.034
日期:2009.7
Esters containing tertiary amine functionalities were successfully synthesized under mild conditions and in good yields, using a three-step process involving the activation of acids into their corresponding cyanomethyl esters, followed by transesterification with the alcohol counterparts, and subsequent scavenging of the excess of alcohol to facilitate purification.
A novel strategy for the synthesis of poly(amino)ester dendrimers was developed on the basis of active cyanomethyl esterintermediates and an iteration of four consecutive steps of deprotection, activation, transesterification, and scavenging.
SmallinterferingRNA (siRNA)-based therapeutics represent a novel and compelling drug modality, provided that safe and competent vectors are available for their delivery. Here, we report a biodegradable amphiphilic poly(aminoester) dendrimer for effective siRNA delivery. This dendrimer is readily biodegradable upon enzyme action, and harnesses the delivery features of both lipid and polymer vectors