Water-Soluble Carbosilane Dendrimers: Synthesis Biocompatibility and Complexation with Oligonucleotides; Evaluation for Medical Applications
作者:Jesus F. Bermejo、Paula Ortega、Louis Chonco、Ramon Eritja、Rafael Samaniego、Matthias Müllner、Ernesto de Jesus、F. Javier de la Mata、Juan Carlos Flores、Rafael Gomez、Angeles Muñoz-Fernandez
DOI:10.1002/chem.200600594
日期:2007.1.2
Si--H bonds of the dendritic systems and subsequent quaternization with HCl. Quaternized carbosilane dendrimers are soluble in water, although degradation is apparent due to hydrolysis of Si--O bonds. However, dendrimers containing Si--C bonds are water-stable. The biocompatibility of the second-generation dendrimers in primary cell cultures of peripheral blood mononuclear cells (PBMCs) and erythrocytes
nG- [Si OCH2(C6H3)-3,5-(OCH2CH2NMe2)2}] x,nG- [Si O(CH2)2N(Me)(CH2)2NMe2类型的新型胺或铵封端的碳硅烷树状大分子}] x和nG- [Si (CH2)3NH2}] x或nG- [Si OCH2(C6H3)-3,5-(OCH2CH2NMe3 + I-)2}] x,nG- [Si O CH(CH2 )2N(Me)(CH2)2NMe3 + I-}] x和nG- [Si (CH2)3NH3 + Cl-}] x已合成并表征到第三代,通过两种策略进行:1)醇解Si-Cl与氨基醇键合,随后与MeI季铵化,以及2)烯丙基胺与树状体系的Si-H键的硅氢加成氢化反应,随后与HCl季铵化。季铵化碳硅烷树状聚合物可溶于水,尽管由于Si-O键的水解而导致降解明显。然而,含有Si-C键的树枝状聚合物是水稳定的。已经分析了第二代树状聚合物