POLYMERIC DRUG DELIVERY CONJUGATES AND METHODS OF MAKING AND USING THEREOF
申请人:Kopecková Pavla
公开号:US20130156722A1
公开(公告)日:2013-06-20
Described herein are biodegradable drug delivery conjugates for effectively delivering bioactive agents to a subject. The drug delivery conjugates comprise a water-soluble high molecular weight linear biodegradable polymer backbone comprising a plurality of linear water-soluble polymeric segments connected to one another by a first (main-chain) cleavable linker, wherein a bioactive agent is covalently bonded to at least one water-soluble polymeric segment, at least one cleavable linker, or a combination thereof. The conjugates possess numerous advantages over prior art delivery conjugates. Also described herein are methods for making and using the conjugates.
Alternating Terpolymers through Cyclopolymerization and Subsequent Orthogonal Functionalization
作者:Philipp Gerdt、Armido Studer
DOI:10.1002/anie.202206964
日期:2022.9.26
The alternating radical copolymerization of divinylmonomer A and hex-5-enyl vinyl ether (HVE) using reversible addition–fragmentation chain transfer (RAFT) is reported. The obtained cyclopolymer B can chemically be further modified by three orthogonal functionalization reactions i.e. thiol-ene click reaction, amidation and transesterification or acylation to provide access to various alternating ABC-type
PROCESS FOR PRODUCING POLYMER TERMINATED WITH OPTIONALLY PROTECTED FUNCTIONAL GROUP
申请人:KURARAY Co. LTD.
公开号:EP0704460A1
公开(公告)日:1996-04-03
A process for producing polymers having terminal functional group which may be protected, comprises polymerizing a radical-polymerizable monomer with a polymerization initiator comprising at least one member selected from the group (A) consisting of thio-S-carboxylic acids represented by the following general formula (1) and dithiocarboxylic acids represented by the following general formula (2) and at least one member selected from the group (B) consisting of polysulfides represented by the following general formula (3), polysulfides represented by the following general formula (4) and sulfoxides:
wherein R¹ represents a hydrocarbon group which may have a substituent including functional group;
wherein R² represents a hydrocarbon group which may have a substituent including functional group;
wherein R³ and R⁴ each represents a hydrocarbon group which may have a substituent including functional group and n is an integer of 2 or more; and
R⁵- (S)m- R⁶ (4)
wherein R⁵ and R⁶ each represents a hydrocarbon group having a functional group and m is an integer of 2 or more. This process can produce polymers with which functional groups have been introduced into one end or both ends thereof, irrespective of the rate of polymerization or the degree of polymerization of the polymer that forms.