Compositions and methods for enhanced drug delivery
申请人:Affymax Technologies N.V.
公开号:US05607691A1
公开(公告)日:1997-03-04
The present invention relates to methods of delivering pharmaceutical agents across membranes, including the skin layer or mucosal membranes of a patient. A pharmaceutical agent is covalently bonded to a chemical modifier, via a physiologically cleavable bond, such that the membrane transport and delivery of the agent is enhanced.
Overcoming steric effects in the coupling reaction of alkyloxycarbonyloxymethyl (AOCOM) halides with phenols: an efficient synthesis of AOCOM phenolic prodrugs
作者:Joshua D. Thomas、Kenneth B. Sloan
DOI:10.1016/j.tetlet.2006.10.160
日期:2007.1
Steric hindrance is a key factor in the coupling reaction of AOCOM halides with phenols. Sterically unhindered alkoxy groups favor the formation of acylated phenol. Under phase-transfer conditions, alkylated phenol is favored regardless of steric hindrance.