HIGH EFFICIENCY METHOD OF PREPARING POLYALKYLENE OXIDE CARBOXYLIC ACIDS
摘要
A new method of preparing a tertiary alkyl ester of a polyalkylene oxide is provided. The new method employs milder conditions that avoid the back reaction to the starting polyalkylene oxide. The tertiary alkyl ester of a polyalkylene oxide is then reacted with a suitable acid to produce a polyalkylene oxide acid.
申请公布号
WO2007081596(A2)
申请公布日期
2007.07.19
申请号
WO2006US49706
申请日期
2006.12.28
申请人
ENZON PHARMACEUTICALS, INC.;ZHAO, HONG;MARTINEZ, ANTHONY, J.