[EN] POLYETHYLENE GLYCOL SUBSTITUTED ACYL BORATES<br/>[FR] BORATES D'ACYLE SUBSTITUÉS PAR DU POLYÉTHYLÈNE GLYCOL
申请人:ETH ZUERICH
公开号:WO2015104374A1
公开(公告)日:2015-07-16
The present invention refers to polyethylene glycol substituted acyl borates, to methods for their preparation, and to the use of said polyethylene glycol substituted acyl borates for the preparation of polyethylene glycol substituted macromolecules. The polyethylene glycol substituted acyl borate has the general formula (I) wherein PEG denotes a polyethylene glycol-based substituent; a is an integer from 1 to 12; X1, X2, and X3 are independently of one another selected from the group consisting of F, OR, N+R3, N+R2OR, N+R2SR, and N+R2NR2, and are optionally forming a cyclic or a bicyclic structure; and R is an organic substituent or H.