Mild Aryl Ether Formation in the Semisynthesis of the Novel Macrolide Immunosuppressant L-732,531
作者:Karel M. Jos Brands、Ulf-H. Dolling、Ronald B. Jobson、George Marchesini、Robert A. Reamer、J. Michael Williams
DOI:10.1021/jo980451q
日期:1998.9.1
Aromatic and Hindered Ketals<sup>1</sup>
作者:ALEXEJ B. BOŘKOVEC
DOI:10.1021/jo01070a019
日期:1961.12
Nanoparticles, nanocapsules and nanogels
申请人:Berkland J. Cory
公开号:US20080075667A1
公开(公告)日:2008-03-27
Acid-labile poly(N-vinyl formamide) (“PNVF”) nanocapsules were synthesized by free radical polymerization of N-vinyl formamide with optional active ingredients on the surface of silica nanoparticles. Polymerization in the presence of a novel cross-linker that contains an acid-labile ketal facilitated stable etching of silica nanoparticle templates using sodium hydroxide and recovery of PNVF nanocapsules. The formamido side group of PNVF was then hydrolyzed by extended exposure to sodium hydroxide to produce polyvinylamine (“PVAm”) nanocapsules. PNVF and PVAm nanoparticles are also synthesized that form nanogels with optional active ingredients.
NANOPARTICLES, NANOCAPSULES AND NANOGELS
申请人:Berkland Cory J.
公开号:US20110287262A1
公开(公告)日:2011-11-24
Acid-labile poly(N-vinyl formamide) (“PNVF”) nanocapsules were synthesized by free radical polymerization of N-vinyl formamide with optional active ingredients on the surface of silica nanoparticles. Polymerization in the presence of a novel cross-linker that contains an acid-labile ketal facilitated stable etching of silica nanoparticle templates using sodium hydroxide and recovery of PNVF nanocapsules. The formamido side group of PNVF was then hydrolyzed by extended exposure to sodium hydroxide to produce polyvinylamine (“PVAm”) nanocapsules. PNVF and PVAm nanoparticles are also synthesized that form nanogels with optional active ingredients.