Silicate Esters of Paclitaxel and Docetaxel: Synthesis, Hydrophobicity, Hydrolytic Stability, Cytotoxicity, and Prodrug Potential
作者:Adam R. Wohl、Andrew R. Michel、Stephen Kalscheuer、Christopher W. Macosko、Jayanth Panyam、Thomas R. Hoye
DOI:10.1021/jm401708f
日期:2014.3.27
report here the synthesis and selected properties of various silicate ester derivatives (tetraalkoxysilanes) of the taxanes paclitaxel (PTX) and docetaxel (DTX) [i.e., PTX-OSi(OR)3 and DTX-OSi(OR)3]. Both the hydrophobicity and hydrolytic lability of these silicates can be (independently) controlled by choice of the alkyl group (R). The synthesis, structural characterization, hydrolytic reactivity, and
[EN] SILICATE PRODRUGS AND NANOPARTICLES<br/>[FR] PROMÉDICAMENTS ET NANOPARTICULES DE SILICATE
申请人:UNIV MINNESOTA
公开号:WO2012166949A1
公开(公告)日:2012-12-06
The invention provides silicate prodrugs comprising a therapeutic agent linked to one or more groups of formula (I): -Si(OR)3 (I); wherein each R independently has any of the values defined herein, as well as nanoparticles comprising such compounds.
Preparation and Properties of Novel Titanio- and Zirconiosiloxane Compounds
作者:Takahiro Gunji、Tsutomu Kitakatsu、Yoshimoto Abe
DOI:10.1246/bcsj.68.2951
日期:1995.10
zirconiosiloxane compounds were investigated. Titaniosiloxane and zirconiosiloxane compounds were prepared by the reaction of di-t-butoxymethoxysilanol [DBMS] with titanium or zirconium alkoxides. DBMS was subjected to the reaction with bis(acetylacetonato)titanium diisopropoxide and titanium tetraisopropoxide to give titaniosiloxane compounds TS12 and TS14, respectively. Titaniosiloxane compounds were isolated
Facile Synthesis of Unsymmetrical Trialkoxysilanols: (RO)<sub>2</sub>
(R′O)SiOH
作者:Scott R. Docherty、Deven P. Estes、Christophe Copéret
DOI:10.1002/hlca.201700298
日期:2018.3
Trialkoxysilanols, (RO)3SiOH, are useful as ligands in transition‐metalcomplexes because they provide models for silica‐supported metal sites or precursors for the thermolytic precursor approach. However, their synthesis is mostly limited to symmetrical ones, where all RO ligands are the same. However, unsymmetrically substituted trialkoxysilanols could offer significant advantages over their symmetrical
A composition selected from the group consisting of bis(tert-butoxy)(isopropoxy)silanol, bis(isopropoxy)(tert-butoxy)silanol, bis(tert-pentoxy)(isopropoxy)silanol, bis(isopropoxy)(tert-pentoxy)silanol, bis(tert-pentoxy)(tert-butoxy)silanol, bis(tert-butoxy)(tert-pentoxy)silanol and mixtures thereof; its use to form a metal or metalloid silicate layer on a substrate and the synthesis of the mixed alkoxysilanols.