SILICON BASED DRUG CONJUGATES AND METHODS OF USING SAME
申请人:BlinkBio, Inc.
公开号:US20170202970A1
公开(公告)日:2017-07-20
Described herein are silicon based conjugates capable of delivering one or more payload moieties to a target cell or tissue. Contemplated conjugates may include a silicon-heteroatom core, one or more optional catalytic moieties, a targeting moiety that permits accumulation of the conjugate within a target cell or tissue, one or more payload moieties (e.g., a therapeutic agent or imaging agent), and two or more non-interfering moieties covalently bound to the silicon-heteroatom core.
Acid-Catalyzed Rearrangement of Azidopropyl-Siloxane Monomers for the Synthesis of Azidopropyl-Polydimethylsiloxane and Their Carboxylic Acid Derivatives
作者:Sergey A. Milenin、Fedor V. Drozdov、Kseniya A. Bezlepkina、Valeriy Yu. Majorov、Aziz M. Muzafarov
DOI:10.1021/acs.macromol.0c02790
日期:2021.3.23
polydimethylsiloxanes (PDMSs) with azidopropyl-functional groups at the siliconatom by the classical methods for PDMS synthesis, that is, ring-opening polymerization (ROP) and catalytic rearrangement of siloxanes in the presence of a strong acid (CF3SO3H). The suggested method was used to obtain PDMSs containing azidopropyl-functional groups at both ends of the polymer chain (telechelics) as well as PDMSs with irregular
在这项工作中,我们是第一个展示通过PDMS合成的经典方法,即开环聚合(ROP)和硅氧烷催化重排,在硅原子上带有叠氮丙基官能团的聚二甲基硅氧烷(PDMS)的可能性。在强酸(CF 3 SO 3H)。所建议的方法用于获得在聚合物链的两端均含有叠氮丙基官能团的PDMS(telechelics),以及具有不规则结构的PDMS,其主链中含有不同比例(5-50%)的叠氮丙基官能团。所提出的方法也被证明对于合成同时含有叠氮丙基和氢化甲硅烷基官能团的PDMS是有效的。结果,获得了沿着PDMS链具有两种类型的官能团的互不相同的排列的PDMS。根据凝胶渗透色谱(GPC)数据,我们使用的低分子量硅氧烷催化重排方法使得获得分子量在2000至88,000范围内的叠氮基丙基官能团PDMS成为可能。通过叠氮化物-炔烃环加成反应,证实了进一步修饰所得叠氮丙基官能PDMS以及同时含有叠氮丙基丙基和氢化甲硅烷基官能团的多功能P
Controlled Anchoring of (Phenylureido)sulfonamide-Based Receptor Moieties: An Impact of Binding Site Multiplication on Complexation Properties
dihydrogen phosphate loadings offer a cooperative complexation mode associated with a positive dendritic effect. In higher dihydrogenphosphate concentrations, the dendritic branches act independently and the binding mode changes to 1:1 anion: complexation site. Despite the anchoring, the dendritic receptors retain the superior efficiency and selectivity of a monomer, paving the way to recyclable receptors
The disclosure includes methods for preparing organosilicon-containing 1,2,3-triazoles by reacting an organosilicon containing azide with an alkyne compound or an organosilicon containing alkyne with an azide compound under thermal reaction conditions.
Versatile, efficient derivatization of polysiloxanes via click technology
作者:Ferdinand Gonzaga、Gilbert Yu、Michael A. Brook
DOI:10.1039/b821788b
日期:——
Copper-catalyzed (click chemistry) or thermal 1,3-dipolar cycloadditions of molecular or polymeric azido-siloxanes with a broad range of alkynes (such as amino acids or carbohydrates) easily yield new conjugates that would be otherwise difficult, if not impossible, to prepare by traditional methodologies.